Well I ordered a set of 4 re-treaded tires last week, and they arrived today. 30x9.50x15. The carcasses they used were bfgoodrich all terrains with the triple sidewall protection. (although it varies on what brand they use.)

the tires look pretty good, and it should be interesting to try them out. They are not the hardcore mud tire I was after, but they didn't offer it in that size.

https://treadwright.com/Tires-30x9_50R15_MUD-P10.aspx

$280 shipped to my door for 4 tires. I will be getting them mounted up later today, but I am not going to run them until I finish the front end stuff (new ball joints, tie rods, and alignment.)

I will update this at a later time on how I like or dis-like them.

If anyone else wants to add any experiences with them, feel free! I would be interested to hear about them.