Managed to buy a golden eagle pro series fuel rail and stock regulator (thanks Benson), and fitted it up along with a short length of 8mm EFI fuel hose so it still has a banjo fitting to the fuel filter.
De-pinned both OBD0 and the new OBD1 dizzy to use the OBD0 connectors and fitted leads.

Today was spent looking for a radiator hose adapter that bolts to the head, as the PR4 and PR3 one's don't fit. Also today, the front cross member was removed, modded and headers fitted while it was off, then put back on. Nearly complete! Just have to:
Get hose adapter fitting
lengthen wiring to air temp sensor
reconnect rack to steering wheel
feed VTEC wiring through firewall and wire up
fit radiator
fill up fluids
sort out exhaust and o2 sensor
run it in and tune