im pretty sure the 4wd k11's are the same as the cubes and have electric driven wheels so technically not a proper 4wd. think its been talked about on here before.
i reckon a pretty good idea and ive seen it done before was... start with something that was all ready FR cut the top off and shorten the chassie to suit the micra shell... technically not a micra, but seeing tho theres no real 4wd micra's like a WRX where you just cut the center differental out it makes alot of sense to.
one i saw was a starlet? ep71 i think cut at the sills off the orginial floor pan grafted onto a shortened volvo floor pan. pretty amazing build which after looking at other FF to FR builds makes life alot easyer.
theres a suzuki swift on RedlineGTI.com? that was converet to FR using the 1.6 suzuki motor, turboed, custom bell housing, BMW E30 rear end, full sub frame made from scratch, pretty much the whole floor pan cut out anyway to fit, etc...
if i was going to go full hog i'd prob start with a silvia and shorten to suit. but the reasions why i sugested T serise diff, rotor etc... is you def need something small and light weight to continue the theam of the car.
ya know, not very powerful but very light so its quick anyway. 150odd hp and it would slide for sure if you did your best to keep it around 800kgs.