Supratek Cabernet Dual -schematic, where to find?

Hi, Since Supratek is no longer in business, I would like to know where I could find a schematic. Thinking of buying a used Cab Dual but would need the schematic in case it had to have repairs. Thanks
i own a cab dual. lemme know if you get a schematic as i'd like to have it handy just in case. if you live in the us, you might wanna try contacting kevin covi. he was mick's business partner in supratek.
I'm in Las Vegas, NV. I have a tech that can work on tube gear, but a schematic would be very helpful.