Yes, as long as the engine is the same.
yes
Yes, it will fit just fine.
yes
No
Yes, 1986 to 1995 tops are interchangeable!
Yes they will.
Yes, that should work.
Certainly, they are both YJ"s.
No they should not fit, 1990 is a YJ, and 1998 is a TJ
No, that is a smidge too small, that Wrangler has a 5x4.5 bolt pattern
Yes, the full steel doors will fit all 1987-95 Wranglers.
Yes, that will fit just fine