I found the repair auction by searching for 'Digifusion Repairs' on
ebay the guys eBay name is 'Sinclair470' so if you log-in you can also search for his auctions.
He only seems to put this FVRT repair/upgrade auction on about once a week, he also has replacement fans on all the time by the look of things.
The last auction was number
9743679192
I had no problems dealing with the guy, communication was good, and my 150 came back fully working, so I am happy.