Ladder bars..??..

That's more what I'm going for is cool old school.. that's why I want to build my own actual ladder bars.. big long girder looking things the connect on the bottom and hang down real low and if I get a flat I can slide the rest of the way home LOL..
actually that was something I was taking into consideration was I don't want them to go lower than the circumference of the rims or I could possibly slide on them with a flat tire and I'm sure that's not going to be good...

Then put heavy duty casters on the bottom of um.