As much as I wanted to keep my Atomic I decided to repower with diesel. I opted for a Beta Marine. It is a marinized Kubota tractor engine. Was too expensive new, so I bought an overhauled engine with a brand new transmission for $4,700 from the EAst Coast dealer. Not much more than it would have cost to rebuild my Atomic and add a heat exchanger and high output alternator (which the Beta Marine comes with). It is much lighter and very compact, and is designed as an Atomic replacement. Will double my range and be much safer, although I never really worried about having a gas engine. I have to get a new prop (2:1 reduction transmission) and fuel filtration equipment, but other than that it looks like a piece of cake to install.