First off: Thanks for showing interest in the post. To counter the weak plastic i vested in a MIG weld and the aluminum profiles seen at the last photo of the post. My intention for the next part will be constructing this support. Finding wheels have proven expensive (but not impossible), and as late as yesterday i was given 2 go kart tires that will become the rear tire set. I was also hoping people interested in this post could suggest other wheels that both are functional and look good. Even though i searched for a few weeks, i am sure i have not turned ever stone possible.