Are you buying keys?  I will sell them for 2 USD equivalency in BTC.

I also have a pretty large stock of items.  I treat keys as 2.66 refined, so... 1 ref = $0.75, 1 scrap = $0.0833.  I sell most items as 1 scrap each ("retail" price) but may be willing to do a bulk discount.  If you want, have a look at my inventory.