Today instead of ordering a chlorine treatment or buying an ozone machine I called my local rental place. They have three. I got one for 24 hours and still have $9.xx left on the credit they gave me for building a replacement part for their sewer auger when I last rented it. 
The magic black box did its thing all day and while I was working on the van I'd occasionally get a whiff of the ozone. Thinking about hooking up a battery charger tomorrow and running the hvac on recirculation for a while before I give it back. Fingers crossed it makes a difference.
Took out the cabin air filter. Wasn't actually too horrible.
Mostly pulled so that I could jam a beach towel in there to keep the ozone in the cab more.
Started taking things apart. The grill came off when I cut a couple of zip ties. 
There is a missing captive nut on pass side of the middle bumper cover.
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Mostly straightforward disassembly, including cutting a number of attatchment zip ties. 
About this time it became more convenient for the van to be on jackstands so I made that happen.
Working on this is a completely different experience than the NV. The engine is right there and even on jackstands it is fairly low. This is also "Euro-Ameri-Metric" where the size of socket just bigger than 10mm is 13mm. Speaking of sockets, I scored another recoup:
This little gem was in the oilmudsludge on the oil cooler lines.
Mostly everything is pretty clear as to how it comes undone. I kept at taking off thing that I know have to make way. I thought it was cool how the hood release cable easily comes undone.
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More and more apart.
The rubber intake hose is bad and has obstructive tape repair. 
Serpentine belt should also be changed. Not fresh. 
With the A/C compressor off the engine and on the floor (Euro for ground) the whole mess can stay intact and get out of the way. Condenser is sort of caved in, wondering if there is any Freon in the system, will check at some point.
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The alternator positive cable is interesting in that it has a tab to also connect to the starter. Cool. Kind of routed behind and through a bunch of things. Alt end. 
Just the other side of the front cat. Heat shielded wire low in the picture. 
It was odd to find Asia-metric 12mm socket fasteners on the front exhaust flange. Probably not OEM. Definitely both broken now.
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The rear flange used the expected 13mm and those broke too and I got a pretty decent fingernail smash out of one of them. The other painful part of my day was the upper intake manifold. There are 7 bolts that attatch it to the lower and 5 were so nice and easy to remove. Bolt 6 had the socket spin around it. I hammered a 12pt 7mm on and that got it loose. Bolt 7... This one was a real expletive-mother-explative. It clearly had been marinading in a bath of dirty water for some time. No love at all from any socket. The heads also have a T20 torx in the midde but that too was corroded to the point of uselessness. In this picture it looks like it is maybe there, but after a long time trying and failing to get it to work I escalated.
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First I cleaned out the area more with water from my mouth delivered by a scrap of fuel hose. Ordinarily I'd probably hit it with compressed air, but I have yet to replace my broken air hose. 
This is what I had to work with.
Yuck. Right? The former Torx center was enough to get a drill bit started. Not straight off the drill though, the cowl is too close. I used a right angle flex extension that I got for LS header bolts on the vehicle. I was nervous that I might slip the bit off and mess up the plastic intake. So I stopped and checked my progress frequently. The first bit broke but it had done enough to go up to the next size.
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Used a telescoping magnet to pull out chips a few times. And then. Bam! My flex angle deal got all wrapped up and busted. It's got an extra right angle now. Dang.
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But, on the positive side, it got all wrapped up because:
That's right! Bolt got handled. Whew! That was %1000 more work than it should have been.
This all was going down in 40F and cloudy and just a speck of snow. Still, having worked recently in so much tougher conditions it felt pretty decent. I was moving and mostly not laying on the creeper so I only needed nitrile gloves all day. Carried my card table of tools into the garage.
Put Promaster parts into its cargo area and left it for the day like this:
Not as far along as I maybe thought, but the extra fight in the manifold bolts definitely hampered productivity.