4AGE + whatever gearbox? Help needed.

[doggy]

Well - as im slowly gathering parts for my rolla while she is in transit - i started to think about new gearbox - cuz T50 will not hold my planed 250hp for sure.. Today i got Altezza 6 speed gearbox from a friend (for FREE ) just need to put it all back together (its reasembled - and got 2/3gears - totaly new - all synchros - new - and 2 shafts - new )

So - im kinda mentaly preparing my self for the gearbox swap - and would like to know what problems will i get im kinda fimiliar with the Toyota Engines - and i clearly know that S series trany will not block to A series engine without extensive modifications... I was thinkning about fabricating spare plate - and matching all the holse and etc, or maybe i could use T50 bellhousing and cross it over with the altezza gearbox bell housing?

All the ideas / topics / info about similar tranny swaps welcome Thank guys.