^^...What good is a b20 engine and a d16 ex tranny going to do????? They dont work together.
If you want to keep it auto, you would need an auto tranny from an integra ls or a jdm b16 (good luck finding the latter).
Youre not even going to be able to buy a 99-00 b16a for $1200, let alone all the rest of it. Tack on at least another 2grand and call it a maybe.
All Bseries trannies will work with any bseries engines. (minus b20a)
You could put any bseries (minus b20a) into your chassis easily, w/ little modification. So yes, you could put a b18b in there.