For the Honda:
http://refinish.basf.us/brands/catalog/page/29/
R-M UNO HD is a high solids, single stage, two component topcoat system. This formulation is based on a unique acrylic/polyurethane technology that offers high solids and high performance. UNO HD comes in a wide range of solid colors that can assure success in completes, panel replacements and spot repairs. The ease of mix as well as application are just the beginning. Expect excellent flow and leveling, exceptional hiding and mirror like gloss. Superior hardness and chemical resistance completes the package. This globally available product was developed with international cooperation among our European and American facilities. Can also be used on flexible parts with DF21 Flex Agent.
Get a set of durablocks and sandpaper in 80, 220, 320 and 400 grit.
Scuff the dints with the 80 grit paper down to bare metal and shape your filler with the same 80 grit on the durablocks.
Now scuff the entire car with the 220 grit using the durablocks
A lot of urethane primers are meant to be used as either a sealer OR as a high build depending on mix ratios. Mix some up as a high build. Shoot the entire car and sand to 320 and then 400. Might have to re-apply in areas where you sand through.
Optional: after sanding the urethane mixed as a high build, re-shoot the car with a layer of urethane mixed as a sealer, then paint color right on top of the fresh layer of urethane. You do not need to sand this layer if you apply the color within a time window specified in the data sheet, that is known as "wet-on-wet".
Wash the car with soap and water. Pay attention when it is wet because the reflection will let you see anything you might have missed when it comes to sanding smooth and flat. Tape the car again. Wipe down with wax and grease remover, then shoot your single stage color.
Tip:
Practice "painting" the car with wax and grease remover in the gun. It goes on close to how paint will and will gives you some gun time before you shoot paint. Bonus is you had to degrease the car anyways so have a helper walk behind you with a roll of paper towels.
For the Truck:
Sand to bare metal
Coat entire truck in a corrosion inhibiting epoxy
Scuff the epoxy with 80 grit where the body fill is going
Shape the bodyfill with 40 and then 80 grit
Shoot the entire truck with polyester high build ( I use featherfill brand)
Scuff the first coat of featherfill with 80 grit. You will see the low spots
Do a round of featherfill dedicated only to the low spots
Do another round on the entire truck
Sand the entire truck again only this time use a guide coat to find any low spots.
Keep playing this game of whackamole until you think the truck is pretty flat . Finish the last coat of Featherfill with a 220 and then a 320 sanding.
Now spray the urethane high build and sand it with the durablocks to about 400.
Now spray the urethane mixed as a sealer and let it sit for about a month to degass
Now scuff the urethane to about 600 using wet sandpaper
Shoot your basecoat ( color coat)
Shoot 3 or 4 layers of clear
Color sand the truck
Buff the truck.
If done with a proper degree of care both paint jobs are going to look pretty good. You will probably wonder why you did all the extra work, and spent all the extra $$$ on the truck.
Pete