Thats too expensive now, try to buy them for under 300$, especially if they're not local as you will have to pay shipping and maybe border fees.
You are probably right, well that's the only site I know where to buy quality mining Rig if you have other sites that you might know please share it here so he could choose if not the cheapest maybe near to his country so he could decide thanks
Not right now, thats the only place where you can get home miners at the moment from a manufacturer. There's tons of resellers selling overpriced stuff but i can't recommend that. Your best bet is the marketplace here, buy used from another user.
So if you only want to buy "new" there's Bitmain at the moment with the S7 which is not super stellar imo.