Hey Leo.....how much did that repair end up costing.....I have the exact same problem and bike is in garage this week.
The bill was usd 2-3k, very labour intensive as you can see. This was for alternator, regulator and mostly labour. Sorry I don't remeber the exact number and the breakdown but it was in the US and 5 years ago so not sure if its a good reference. Luckily in my case the bike was in its last month of warranty.