Glad you are pleased!!

Your RST really is the nicest original unrestored S2 we have seen. Everything was nice and tight, just like it would have been from new. There really aren't many around like that anymore.

Regarding the ECU, we couldn't say with 100% certainty that it is an S1. Perhaps it would be a good idea to take a photo of it and put it on here (I will put it up if you dont know how) and the maybe someone can firmly recognise it.