Hi Matey...
Sorry to hear about the skid, I did exactly the same thing about a week after you. And by the sounds of your description, more or less the same damage.
I've fixed up most of the bike now so I'm back on the road and legal.
I was wondering how and what you used to heat and bend back the rear brake lever? Mine was bent in the skid also, I was thinking of trying the same thing but haven't started the job yet.
Also, I was wondering if you or anyone else reading knows of anywhere to buy after market or pattern parts for a R125. I have looked at the two main Yamaha places online and they don't stock much, certainly no main replacement parts.
Cheers... Happy riding