Shinoo,
I may be able to help you out with parts for the 365 or a NG3 gearbox. The 365 was taken in on partial trade on a sale for another transaxle. Unfortunately, a tooth broke off on one of the gears and the fragments got into the working parts. I haven't looked at it that closely but you are welcome to have your specialist take a look at it and see if anything is salvageable. There is also a NG3 that I may sell. I won't be available till after Nov 10 due to pressing family issues that is taking up most of my time. In case you've forgotten, we met a few times at your shop while picking up parts for my Elise. I know you're familiar with the roads in the DeLuz area where I live.
Joji Tokumoto
Fallbrook, Ca