I'm pretty sure you get bugged 9million times a month so I will make it quick. T5 when put into 3rd or 4th gear doesn't do jack. Is this the synchros? also if you would like to spread your knowledge instead of reply through PM.
thats alot of tq. the only way its gonna happen with a t5 is an A5 gearset with the 26 spline input shaft and a upgraded mainshaft. that transmission will proly run in the 2400-2700 range shipped. you looking to go proshifted or still syncroed