Good morning Johnny V, welcome to the Board!
I'll jusst comment on the handling - you'll want to stiffen the torsion bars to at least factory specs for a BB if you go that route. If you like a tighter feel, add a front sway bar.

Other than that a BB basically handles as well as the SB in stock form. They will 'feel'different though. I drove a B-body with SB for 10 years before buying another of the same model,but with a factory BB. The BB definitely understeered more,but the more I drove it,the more I got used to the way the weight feels (Again, both cars are factory stock front-ends) and now I consider them equal in handling. But the feel of the SB is def lighter. Others may have a different opinion.

I am currently building another BB B-body more as a road car and will put a front sway bar in it, probably a thin rear swaybar too from Firm Feel.

Thanks for the interesting thread!
-Art