Both of the above vehicles are very nice. I do like the two door and the truck is a parade-stopper. Figured there are a lot of "A" coupes around and I like the look. I would go un-chopped for the top and just run a nice stock body.
I figure a few months ( I have done it before) because I will buy a nice body that is in excellent shape so I spend no time on that. I'll buy a new frame and kick up the back myself so little time there. I have both "built" and "assembled" things over the years and a combination works OK. The guys from the '60's would fully approve and we longed for some better way to put things together. A new frame built on a jig solves a lot of future problems.
I once spent a winter chiseling the rivets out of two '37 Chevy coupe front ends to convert from the Master DeLuxe knee-action shocks to a "Master" stock straight axle with six bolt hubs. Not all the crossmember holes were in the same place so I had to drill holes with 1960's drills and bits. Then I needed an adapter machined to adapt to five bolt wheels.
Today you can buy a Magnum axle, torch or grind off the old rivets, install a better crossmember and be done in a day. Plus I feel better on the Interstate in the blind spot of a semi. It's not truly home built but a close second maybe?