I'm sure there a heap of people who have done this mod, but i think the easiest way to do it would be just to fit the gearbox and dummy fit the t50 crossmember and see if you can use it.
If not i'm sure making one from scratch wouldnt be too difficult, even if you dont have a welder, get yourself a 4inch grinder and some steel, cut and drill everything to suit and take it to someone to weld up.
good luck
cheers
Craigy
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