My mum had a Frontera with that Isuzu 2.8 and it was a total monster!! Really agricultural but loads of power and never ever put a foot wrong. Car died at 180k, everything fell apart accept that engine, sounded as good as the day we got it.
Mate of mine had a 90 with that engine and it was ace. You can get conversion kits for them and ive seen a RRC with one fitted for sale before.
Ally