1jz for 1991 Supra turbo/harness,motor mts issue?

[stanley2001]

Thanks for all the info in the previous thread. I think I understand a whole lot more about Supras and what can be done with them.
From that, I like the 1jz swap to my 1991 Supra Turbo idea. From what I gather there are 3 modifications necessary. 1) The wiring harness has to be lengthened, even on ones that come uncut with the 1jz.
2) Motor mounts need to be changed. 3) A different drive shaft has to be installed. Does that sound right? Where can I find a drive shaft and motor mounts? Thanks for your help. Stan