Interestingly there was a rarer, larger, less cute 17' version that could be had with a shower and toilet.
I think that's probably the a 17' Boler you're thinking of. As far as I can tell Eco only had the 13s and only made them for a few years. You can get a modern 16' Scamp or a 16' or 17' Casita with the same construction and a wet bath.
What are you plans to keep the cabinets and drawers closed while towing? There are simple catches that do the job and release easily.
Still pondering that. On the small cabinets, the spring-loaded "self-closing" hinges I used have enough tension to keep them closed. On the big cabinet, though, it will swing open when towing. I'm currently thinking a simple baby latch would do it, but I'm also considering some of the little push-botton RV cabinet latches, like these https://www.amazon.com/dp/B07MZQ8QY8/ref=twister_B07MZQ3LX6.
But nowadays both of us prefer something more self-contained. Like a bathroom with shower.
You should definitely look at the bigger Casitas and Scamps. They have a bathroom/shower and are still about 2200, fully loaded.
Could the 4" holes have been for a heater? We have a Propex that I put in the Vanagon that uses inlet and outlets about that size.
Maybe, but after 50 years, who knows. It has a propane heater under the sink, but there's no telling what people were thinking. I was just happy to be able to re-use so much of someone else's effort and make it all work.
I am assuming that the sink is glued on, and those little screws with washers are just for alignment?
The sink actually sits sandwiched between the old carved-up fiberglass countertop and my new wood countertop. On page one you can see a pic with the original sink hole (and a hole for the now-removed stove). The new sink sits on top of the fiberglass but below the wood, and yeah, the screws are really just for alignment and extra stability. There were just too many holes cut into the original countertop to reuse it without a ton of work, and it was easier to just make a new wood top.
