yes, actually I took the front clip off the 58, less the hood, when I changed the engine, before it got the paint job it has now, but it's one heavy sucker to do anything with - the AD might be a bit different, but mine was sure awkward to put back in place w/ the inners installed
maybe you should sorta split the difference as was suggested some where else here, paint the firewall, around the window openings, and door jambs and edges, then assemble it all and paint the works - paint the assembled box seperate then install it - that gets all the places done that can't be reached when it's together, but still keeps from too much chance of dinging fresh paint
Bill