Hello. I'm trying to start my own mobile juicing business. I have the money to build my own mobile cart. I spent some time thinking what I want my cart to do. I want to incorporate a mechanical suspension That can lift up the cart for traveling So it can go over steps and curbs (Off road wagon style, no problem) But then I want to be able to set it down So I can have my table at elbow level For smooth stable sale operations So I came up with this but I'm not sure what mechanical parts I would need to put the suspension together in order to give the suspension on my cart this function. BTW: I plan to use 8 bicycle tires. It's not going to be on the road. I'm not going to tow it. I'm going to tie it up on top of a flat bed trailer that is road ready and tow the flatbed trailer. When I get to my sales gig, I plan to unload it from my flat bed trailer and push / pull it to it's destination. So yeah, I was wondering if you guys could maybe give some ideas on how I could possibly design this in the simplest most stable and efficient way possible?