Do the usual checks like look at feedback from the seller. I would email first to ask any questions you may have to see if you get a prompt response. Pay by Paypal using your credit card and you are protected on both fronts. I do use eBay a lot over the years and really have not had any problems. On two occasions after raising disputes, PP refunded me in full. Just follow the rules. An expensive item like that should be sent RM next special delivery with tracking. This service provides automatic cover up to £500. Hope that helps.
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