Welcome to the dark side. Check out
www.clublexus.com . Just about everything you need will be there. There are a few motor options you can take.
I have a full 2JZ front clip from an Aristo down at ADC that I am transplanting into my 1st gen GS300. 4 doors, rear wheel drive, reliable, easy to work on and 400 rwhp without breaking a sweat. Let me know when you are ready to discuss.