I have done this swap a couple of times.

Hubs:
88-91 civic/crx dx or si hubs work, they are the same. If you want bigger front brakes you can swap the whole steering knuckle from a 90-91 ex.

wiring:
you will need to wire it over to multi point injection. The instructions I use are located at www.hybrid.honda-perf.org look for the dx to zc wiring article and follow it. As for wiring kit conversions you only need those if you want to run a 92+ ecu. If you run an ls motor just use the 90-91 ls ecu. To do this you will also want to have a spare multipoint engine harness laying around to cut plugs from.

shifter:
It depends on the shift linkage you use. If you use something like the hcp adjustable then you can reuse it, if you use the hasport or a modified integra one then you will need an integra shifter.


HTH
Kevin