Does a Canaan Avalon Nano 5s cost $700?  Do you have any doubts?  Since LuckyMiner with 4.5TH only uses 120W and costs $203 right now.  You can purchase more than one Lucky Miner LV08 to use up your 500 watts of available power.  I helped someone order an Avalon 3 instead of the S version on AliExpress, and it arrived in my country a week later for just $210. The Avalon 3 also comes with 4TH, and it uses the same amount of power as the Lucky miner (140watt). In regards to the Canaan Avalon, I believe it is a little pricey in your area.  Go to another retailer; the Nano 3s should cost no more than $330 to $370.