Nice build, and props for keeping it clean. How many street miles have you put on it since? I built my cars a while back and drive em every day too, but i got sick of cleaning so much and uninsured drivers crunching body panels.
When I was 16 I helped a friend take a silvia front clip and put all the components of the SR20 into his 91 s13. It was one of my favorite cars to run around in back in the day. Once we put the lim. slip from an infiniti in it it hooked up pretty hard, 6 puck clutch and stuff parallels your build in several ways.
I think when we were done he had around 2G invested in the swap.
I worked on a few KA24s as well, but never under boost. I did all the custom body work on another friends S14, turned out really nice. I convinced him to get a LC2 turbo v6 for it, but he never bought a transmission to go along with it before giving up on the project and giving me the engine. Maybe ill do a swap into a 240 one day, sure would be nice...