Aluminum Alloy Identification...

I've been in talks to sell our ingot as scrap, because it is technically scrap. The issue I've been encountering with buyers is payment terms. This is, from a business standpoint, an international transaction, I would like use a L/C to eliminate the risk, whereas buyers are telling me to spend thousands to ship hundreds of thousands worth of ingot here to the U.S., pay to truck it to their facility, let them weight it, then issue payment, all on some verbal honor system, that they will not renege or lower their asking price once I have 20 containers of ingot here in the U.S. that I need to off load.

In short, I'm having issues finding serious buyers.