There may be other avenues to shop, but I think ebay is going to be your best best. In terms of returns, problems, etc ebay will have you covered. I have only had one bad experience on ebay but I was able to return the item without any issue (item was not as described, missing screws and didn’t even work!).
There are some Facebook groups but I don’t have experience with those. On ebay you can save a search and ebay will email when new items are posted with your criteria. One is bound to come up for you within a few months with your criteria.