May I suggest that you specifically request a 1991 vr4 model harness, as there a few subtle differences between the 91 and 92 model years.
... mostly related to the etac and abs systems.
I would try and get one that has all the bits attached (all the modules, fuse/relay panels as well as any and all geegaws and boxes plugged in where they go)
Probably make things a lot easier in the long run.