gti-r sr20de into n13?

[hahaitzskippy]

CA18DE(t) engines are a dime a dozen here however, nobody has a FWD transmission for me to buy

however, the GTI-R sr20de is AWD and i find more of these transmission's than the ca18de(t) fwd transmission's.

can magically (realistically) fit this engine into my n13?

people say it is difficult to fit a sr20 in the n13 but never say why it is diffcult.

can i make the AWD transmission into a fwd? i hear other people doing it but can this transmission do it?

any response will be appreciated