8 year old trailer, no electric over hydraulic brakes worth 4-5k? Motors are 15k new each onsale this time of year, rigging, props and controls are hell of a lot more but these 8 year old and could have heat/electrical/electronic damage. Not running and not being able to tank test the engines, I'd value them at ???? There is value there but no disrespect to the member if he is on here, not something I would touch with a 10 foot pole. If someone was in the interior already and could whip over there with a gas tank, hose and maybe a wiring harness if that is needed to start them they could find the value. Just my two cents...