Hi David,
I am a little bias of course because I own an A&C. The body glass is the strongest that I have seen. I have measured some areas in the glass as thick as 3/8 of an inch. There is no flex at all and does not need any support structure built to store it before attaching it to the frame. The quality of the gelcoat is also second to none. However, as far as door fit and truck fit I did have to do some shaping to make things fit just right. The doors are held on by very strong hinges that bolt to a think square tube cowl bar. The hood and trunk use the same hindges and are held to the body by a factory glassed in steel crossbar. The body is held to the frame with a combination of brackets and large rivets. If you make it to NY let me know. I'm about an hour and a half away from A&C and I would be happy to show you my car. Also I would have to agree with avanti-176's post if price is not an issue.
--Mike