Wheels for a chicken tractor..Could sure use some ADVICE

[foofpoofkazzam]

I am just sitting here like a stalker waiting for some info and bingo...thanks for the details. I will be heading down to the hardware store soon to drive the guys there nuts. I think they secretly laugh behind my back when I describe my projects and the parts I need as "thingamabobs, doohickeys and hootahaws" though. Wait, they laugh when I am still standing there...no matter, I have a fun project ahead of me!