I'm in the final (I hope) phases of building up a nice turbo motor for
my diesel westy. I'm having an AC compressor installed before I put the
motor in. I'm researching ways to add the rest of the system inside the
car.

Chris G. sent me a nice rundown on the Behr system. I see you have to
give up your glove box, but no bit deal really. Where do you get the
Behr unit and how much should I expect to pay. The one thing I worry
about is getting air back to the rear passengers. Can the cold air be
routed like the fresh air, through the door and back to the two vents
over the westy sliding door?

And what about the overhead unit that came installed in vanagon? There
is one available locally and it'll be pretty cheap. It looks like it
will do a great job of throwing air to the front and to the back, and I
won't lose the glovebox if I go this route. But unless I figure a way
to move it forward, I think that Martin Jaegersand did it and lost
about 7" of entry room into the upstairs bunk. That's a lot, especially
when you consider using a ladder to get up there. Has anyone
successfully moved it? I doubt it can be moved because if it's too far
forward it won't clear the heads of the people in the front seat, so
the only real solution is to shorten it in its front-to-rear dimension.

And then there's the under-the-back-seat solution, which I know
absolutely nothing about but I have heard they exist.

Anyone have an opinion on any of these?

Jim