You can get most anything for the 86.
The biggest concern is your trans.
If your trans is goo, your ready to go.
Power?
Do all the Kawasaki team Green cylinder mods.
Balance the crank.
Have the head squish changed and do a decomp.
Keep the compression reasonable.
Pipe, VF2 reeds, properly jetted.
Unrestrict your exhaust valves.... The stockers are plugged up.
Remove the kips wall.
Raise the port timing.
Have the trans undercut then micro-polished.
Cryogenically treat the engine.
Break it in using heat cycles..
Hang on to your pantyhose