Kubota M7040, Kubota MX5100, Deere 790 TLB, Farmall Super C
If I was going for new bias tires my first and second choice would be Firestones and a notch up from OEM quality. You really do get what you pay for. They don't make some small sizes but that's just my two cents.
I heard years ago that you aren't supposed to use tire plugs with radials. Any truth to that? I am sure people do it, even if you aren't supposed to. I have heard of people using them on cars, but I personally never would except maybe temporarily in an emergency situation. Patches I am ok with.