You can use our top deck as your battery hold down as well as our battery spacers to do the conversion. Top deck is 35.00, spacers are 10.00.
The spacers, you just servo tape to the bottom deck to keep the battery from moving side to side.
For 45.00 you can have all the parts ready to go and you don't need to do any cutting, except for the center rib on the chassis and the forward-most mounting position for the rear brace.
PM me if you are interested and we will guide you in the right direction to complete the conversion.