If you have fried your ECU then we (Avanti) are able to fix them. We've done quite a few of the 16M from both water and reverse polarity damage. Just drop us a line via the website if you need any more info.
Thanks for the offers of help with the ECU. Exploring all avenues for the most cost effective replacement / repair. Have missed some on ebay recently for around £50 so i guess it could be a waiting game - mind you with all the recent rain & current work comitments haven't actualy missed to many opportunities to ride.