Fc to SR20Det swap

I know some of you may say, im dumb and stupid for going piston instead of rotary and doing a bastard build, but I have an 89 FC and cannot find a 13b turbo. So it only left me with this option.
I am currently looking to do an SR20DET swap into my FC and I was wondering if anyone else has done the swap? looking to get some insight and things of that nature. Right now as far as it goes for the swap, i know that i will need to modify the rear oil sump along with the motor mounts along with some other good to know things.
I know i will have to get a speedo from an SR20 along with that too, but is there anyone that could give me some helpful advice? Tips? or something that will help with the build.

It's been done. I'd say it's not worth the cost. For similar cost and effort you can put a V8 in it with a kit. I'm not sure what you mean by not being able to find a 13BT. They're all over the place.