If I were you I'd do an OBD1 swap and use a tuneable ECU, highly recommended for this kind of build.

I'd also suggest using a B16A head for cost/availability purposes. Either of the VTEC B-series heads will yield good power in a B20 setup. Of course if you can get an ITR head or B16B head cheaply then the B16B head is the best option for OEM camshaft profiling, but if it were my build I'd just go a B16A and maybe upgrade the TB/IM to a ported ITR setup.