I had that swap on my TII about 2 years ago, i'm back on my to a 13bt.

At the time i was real desalinated on my last 13b for letting me down after all the TLC i gave it, got **** at the rotary and went ahead and had the motor sitting on my driveway not even a week after the 13b blew. but it didn't feel right.. it didn't spooled the turbo or felt like the 13b, i kept it till my little brother bought a mint 240 coupe, i gave him the motor and he bought me a Jspec 13b.

Don't know how hard will it be to fit it on the FD, the FC was real easy... I was running the motor on a P28 honda ecu that i chipped and tuned making everything real easy, and cheap.

I paid 230ish for my driveshaft, I had to lower the sway bar since it was hitting the oil pan and notch the subframe. Like i said i'm not sure how it will fit on an FD but ones you mount it getting it to run its really simple.

the motor was straight, i had a disco potato on the stock manifold and some 550cc injectors, dish the MAF since the honda ecu runs on MAP.. never made it to the dyno.. i just tuned on the street like i do any other honda; and it use to move.

if you decide to go ahead and do the swap i have no problem helping you out on the ECU department.