Building an e30 series car?

[Gus 5]

pre FL's are lighter but are generally rusty, and there is a minimum weight anyway so im not sure if it matters too much

318FL or 320 is the big question..much remains to be seen

2/4door i imagine is neglible...2doors a bit lighter but again, minimum weights apply...the possible stiffness benefit of 4 door likely to be negated by cage

2 doors look better but 4 doors more common..easier to pick up a decent car?