After much consideration Ive decided to boot out the D16Y8 and go for a B18C.
Now though Ive got some questions:

1) Will a Civic coupe exhaust match up to the exhaust manifold of the B18C block or does it require a welded flex pipe?
2) Should be able to just use 99+ Si motor mounts for the new setup right?
3) Any axle mods required (other than I have to swap out my old ones for teg axles)?
4) Who has some great deals on complete engines? Wishing for JDM but will settle for local.