+1 No fork = huge red flag.

+1 Super crappy ad, what's with this seller?

Also, seller has THREE negative feedbacks in the last year, which is actually pretty bad for his size. A seller moving as much product as this seller, should be a top rated seller if he is taking care of customers. The lack of top rated status to me is another red flag.

Last red flag is no return policy. If you want to get higher values for your ebay sales, you need to accept returns. Yes, an occasional item will come back, but the extra you make on each auction should more than cover it. And with ebay's liberal buyer protection plan, ebay is going to side with the buyer anyway. So why not just cooperate with the program, accept returns, and enjoy higher bidding on your sales? Seller does not understand ebay, despite his relatively high volume.

Finally, you cannot reach top rated seller status UNLESS you accept returns. So why bother? Well, first, as I explain above, you are going to end up taking items back anyway. Secondly, top rated status gives you a 20% discount on ebay final fees, and about 30% discount on postage. Those are pretty significant for an active seller. So an active seller that is not cooperating with ebay's top rated seller program? Big red flag to me.

I had a doofus seller once, on an expensive antique chandelier. Seller packed it terribly, so it arrived damaged. Contacted the seller, his response: "you should have paid extra for insurance." My response, "insurance only covers you when item is well packed, not poorly packed". So I went straight to ebay, and they immediately sided with me. It was pretty obvious.

Now despite all of this, at that price, maybe you take a flyer on the frame. I wouldn't unless I could pick it up locally. A local pickup? Sure, as I could inspect it immediately (and not pay for it if it was damaged).