I want to set up my own roundabout to work speed and accuracy.

I want to keep my cost down and will build bases out of 2x4.

I did some googling and could not find the one.

I would prefer 12" AR500 3/8" thick with a single hole toward the top of the round.

where do you get your AR500 for best price and no killer shipping.

and decent 2x4 hanger.

thanks