Bed cap with solid doors?

[I_really_really_want_one!]

I'm looking for suggestions on a camper shell (what they used to be called) with solid side and back doors that open. I don't need a commercial model, but even each vendors consumer grade products are ridiculously expensive. To add solid doors in place of windows is like $350 a door.

Does any here have one with the doors and how do you like it?

Any ideas on how to keep the price down?