Those are nice! Really 89 isn't a lot, well it is, but compared to how expensive new trucks are nowadays.
It is, but it isn't in the big scheme of things.
I like that it doesn't have a lot of built-ins, leaves the floor plan open for gear. I don't care for a lot of built-ins...like a stove and sink, takes up so much room. Where a camp stove and a jug of water works fine, gives you the option to use inside (
with the proper ventilation of course *stating so I don't get scorned by the internet gods 
)...or out. Don't care for inside toilets, do you take a ******** in the middle of your kitchen and/or bedroom at home? Inside showers just make everything else wet inside the camper. Move all that stuff outside in a privy.
Though a "dirt bag" version would be a gasser
RWD Transit with a block lift, and
an electronic locker. Which is probably all you need as you aren't going to take those big 4WD vans on anything too too gnarly off-road.
I can find Transits all day long under $30K. Betcha you could be into a nice little camper conversion for under $40K when everything is said and done, if you don't get too stupid...yeah the Transits don't get as good as gas mileage as the Sprinters, however, I just saved $49K going that route over the Merc OV...lotsa money left over for fuel.
Ford sells wall liners from the factory, or the aftermarket...
You can buy precut insulated wall liners $2000 or less. Would take a lot more abuse than the textile materials OV uses. The textile look is cool, and probably meant to feel cozy, but I need something that can take some use and abuse. Don't quite understand the whole luxury interior thing to go camping in. Just going to drag in in dirt, dust, and mud in it...and the occasional plume of camp fire smoke...
Or insulate it yourself, and do those molded poly-liners, bunch of options out there if you do some diggin'.
