Suspension
Basic plan is to add truck “air bags” to rear shocks, this would increase the total performance of the suspension system and offset the Weight increase as a result of adding 1200 lbs of Batteries
A basic air bag is rated at 5000 lbs, so more than sufficient for this project.
Phase 1 of the project will not apply any modifications to the stock suspension. The plan it get the bus driving and then in phase 2, start the extreme modifications.