I have bought everything from $2 fuel lines to a $3,000 boat on ebay. I have had a few problems but i pay with paypal, a stand-alone, ebay owned company. It backs a buyer with protection. If your scammed they give the seller a chance to explain his side and if he dont fix it they make you right! I have been reimbursed for SD memory cards that never came and the seller was deleted for unkown reasons after my transaction, then i found out he was in like Hong Kong! Took several weeks but i had my money back. The good thing is all that seller sees is a deposit in his account from paypal, he never gets my card or account number. Ebay is linked to my credit card and is a great company. I had issues with the fuel hose from a seller as it was after market. It leaked, i contacted him, he sent another, it too leaked. The seal in the chainsaw tank was not tight so it sloshed out. I asked him for a refund he gave it to me and i sent his fuel lines back on my dime as he was more than fair in the process ( and it cost less than $2).
I would buy and not worry esp if you pay through paypal. If you get it and its mis-represented you can return it with paypal backing for a full refund. I mean if the guy says "professionaly welded" with 1/2" steel and you get it and the welds are porus and with 3/8 steel he did not represent his product fairly and your entitled to a full refund and he has to ship it back as well. They will make it right!