Is this the 18Hp fresh water cooled engine with 55A alternator.
Could you give year and hours please? Maintenence history.
Pictures and a link to video's would be great.
Currently in Midway Island, will return to Arizona in a week.
Purchased a boat in Sturgeon Bay Wisconsin this winter, no engine.
I'll be back stateside Thursday afteernoon and be able to get cell phone and text service going again.
I'll send a private email with my contact info.
The manufacturer is putting Beta30 engines in now (25hp I believe) close to the 18-20hp of your Yanmar.
Would have to work out transportation to pick up, or ship.