Does Canaan take BTC? I see their site says "We will give you wiring instructions and a final invoice."
If you are ordering 60 or more ( a pallet) you can order direct from Canaan. They will only take a USD wire transfer. They stopped accepting crypto when they began the process of going public.
Their distributors still accept crypto though, blokforge or cryptouniverse are the go to distributors now. Minerwarez is still official but there were some problems with their last orders for 741s; so I don't recommend them at the same level as the other 2