The 5 bolt conversion was very easy.
There are 2 options to do the 5 bolt conversion.
1. Use complete E30M3 suspension parts and brakes
2. Front E36 Rear E36ti (Better selection of wheels with this one)
O.K. but for the E36 conversion did you use the complete E36 front suspension? What offset do you have now? Are you using the E36 brakes too?
Mainly what I heard was that the passanger side foot well was slightly shrunk because of the extra room needed for various parts (like brake booster). Personally, I'd rather not go about doing something like this because the car would still be used as a weekend driver with some track use as well. But the way you talk about it, sounds like everything turned out well. Do you have more pictures of the interior engine bay, maybe undercarriage?