Looking at his history he has been a member since 2001 and sold engines before with good feedback.
If you don't think you can get what you want local then it is your call. Just make sure you read the Ebay Fraud Auction Warning page http://reviews.ebay.com/FRAUD-Auctions-WARNING_W0QQugidZ10000000001625942?ssPageName=BUYGD:CAT:-1:SEARCH:1
and make sure you follow their advice about what payment methods you should NOT use.
