Storage Solutions Any place where I can bulk buy exos for my NAS?

I am building a HTPC/streaming server for my home. does anyone have any idea where I can look into bulk buying some 14tb+ exos for my server? all the prices here are bloated af and I want atleast 200tb+ for my server. At this point it looks like it'll be cheaper if I just went to US and bought all my stuff there and bring it back to india.
P.S. where do I find ECC memory? I wanna run ZFS but literally cant find it anywhere.