I don't need any special mounts, to my knowledge it bolts in just fine (assuing it's just an RB20det swap with tranny) since I have an s130. But you're right on radiator, thermostat, water pump, and clutch.
I figured I could still use the one's on my 280zx since the threads I've seen people do the rb20det swap never mention getting new ones.
Thanks for the info guys, guess I'll keep saving.