this is a great build and those engines are capable of a lot of power!!!
I look forward to seeing this completed, it should be stunning!
I hope you find a way to incorporate the independent rear suspension and rear differential from the lexus platform as well. Since you are fluent in japanese vehicles, might I ask why not a skyline GTR based swap (RB26DETT)? I suspect I know the answer is because you had a donor lexus kicking around whereas the cost of sourcing GTR parts would cost a grip; all of which I can understand.