Repair a Rel Britannia B-3?

I have a Rel Britannia B-3 that recently died, no blue LED light, no power. A repair guy here in Houston says he can't find parts or a replacement board for it. I tried calling Sumiko in California and received no help. It was $2200 new and sounds great with my Thiel 1.6s, so I hate to scrap it. My dealer is back in Cincinnati, and doesn't do repairs.

Any advice would be most welcome.