Speed,
Most of the manufacturers will comply with your request for a non-standard engine implant by simply not supplying motor mounts on their chassis and let you design and install the requesite mounts. It is pretty simple really once you have the engine/tranny in hand and placed in the chassis to take measurements.
Mike's offer to make up a custom mounts on their chassis is the perfect opportunity if you aren't into fabrication/welding, etc... to accomplish your goal. Their chassis and body are very nice and would be a perfect platform for what you want to accomplish.
Time to start looking for an engine/tranny and get started!
