Yes, they both fall within the same era. (MKII)
91 or 92.............................you needing an engine?
no
a lot of things mostly a leak of some kind
Anything will fit with enough modification
yes
yes they should be the same engine
no the civic engine is a transaxle not rw
If same engine, yes.
Yes
4.6 L engine to 4.6 L engine. Why not.
No