The bolt holes and frame support under the floor is designed for just 1 set of bolts(4). usually when you look under the floor above the LF tire you will see NO steel support for moving the seat pedestal forward. You can have some type of steel plate or angle fabricated to move the seat forward, But, as a RV service center, we will not move the seats from the original bolt holes and will not relocate or install ANY seat belts that are not approved by the OEM maker of the RV. It is a liability issue. You can probably find someone who will do that work for you. Just call around. You could also have mobility impaired Throttle and Brake controls added that would give you the ability to do what you want without modifying the seat or extensions on the pedals. Doug