I like the strategy you guys are going for, and the outriggers are a nice touch (although I only see 1 right now), but it’s tough for casters to go up a ramp, especially with drive wheels in the back. Have you built any kind of prototype of this?
regarding the casters on the ramp… the base prototype we build did climb it, albeit under a certain stress for the driver/operator to keep it “straight”. We’re working on the weight distribution over the wheels and their exact positioning on the chassis in order to get the most of it - and hopefully make it work.