i wouldn't even think about a chop unless you have at least one donor and the location of another incase you need something twice
...
that is if you want to do one "correct"
some have raked the windshield back and the back end similar to
make up for changed angles
donor door tops are a must at least and lots of time and welding
if i knew then what i know now?
i wouldn't have done it, but no turning back now
so i'm goin 102% into it
(this is 3 years after i bought it
and after i got another donor, and a few bits of another
just so i can finish all the major stuff now)

it ran and would have drove with a little life support
before it lost it's lid ;)

i am hoping to be vanning with it in the spring!