One thing you need to consider is that a new gas generator will use less fuel per hour than your old one. When I changed my engine from gas to diesel, I had to change the genny to propane. Based on my experience I would stay with gas. By searching you should be able to find a relatively recent Onan Marquis Gold 7000 like mine for a reasonable cost. Quiet and nice. By switching to propane, it was de-rated to 6500 watts and uses more fuel. Someday, I will switch to diesel to get the genny to match the main fuel tank.
