wiring headache

can anyone help me?
i have a 88-91 shape civic rallycar.i want to reshell into a 92-95 shape.
my questions:
1.it is impossible to find a 92-95 shape vtec in ireland,so im looking at 1.5vtec's or 1.6 sohc vtec's for my conversion.will my b16a2 engine bolt straight into either of if i use the proper engine mounts?
2.is the wiring loom the same on these models from the dash out to the engine bay?and if i get an obd1 engine loom will it fit ok?

any help would be greatly appreciated

thanks

If you run a 92-95 shell you can drop a b16 in it by using 94-00 gsr mounts and linkage wiring shouldnt be a problem if you use the 92-95 harness or obd1 gsr's