do you actually know what your on about?
have you ever looked under the bonnet of a gtr?
I do know what I'm on about.. as you can see after that quote, I also said:
"Obviously though we'll lose the back seats because the design of the box, the driver would be quite far back - then I guess we'd need to move the dash back, pedals etc.. ok forget the idea lol"
But no I haven't looked under a gtr bonnet myself, not for long enough anyway lol
But that plate in the link I showed.. if something like that could be used to adapt a stronger box off another car maybe it's a route to go down.
I read a thread about the gearbox support bracket which 1 member fabricated for himself he said it worked well with his uprated R for 2yrs I think and still going strong..
But then another member used gear cuffs or something?.. now THAT looked promising but I lost the thread and I didn't see any results from how it lasted.