Haha, he was a professional drifter in our country, and had a lot of free time, so it's what made him happy I guess :) He did the swap in his garage, and it actually seemed pretty easy. Only downside is the dash still had the PRND markings.
I did a full photoshoot on it a while ago (pre-gearbox swap), you can check it out here if you fancy: https://steemit.com/photography/@garethb/searching-for-silvia-shooting-the-nissan-s15-original-work