New to Nissan

Hey guys, im new to nissan i have a civic that has had a motor swap but i have no clue about nissans.

I was lookin at a prelude but i want rwd so now im lookin into a 95-98 240!! Anything i have read mainly points towards a sr20det swap i was originally thinkin rb26dett but read it will cost tons more and the weight will be all screwy. Anyways i want to turbo the motor once its in any suggestions on turbos and costs for a turbo? And any input would be great thanks!!