I am looking at a 1977 Sylvan 19' deck boat. it has a ford 302 V8. anyone have any thoughts on this boat. interior in excellent shape; lower unit looks rugged but no oil leakes; Is this going to be a gas guzzler? they are asking $3500.00. I live on a chain of small lakes and I like the idea of a deck boat but the V8 concerns me plus being 25 years old... any thoughts would be appreciated..Thanks....