727 trans rear band and drum shot

Own a 88 Wrangler with a warmed up 360 LA with megasquirt EFI. I had installed a B&M transpak shift kit long ago. Then decided to put a Transgo TF-2 kit in. It always had a 2-3 flare shift and I never gave much thought about it.

Ordered a Turbo Action Forward Pattern MVB, heavy duty rear spring, rear billet servo, and billet retainer.

Upon pulling the pan it was full of band material. Once I was able to get a look at the rear drum and band, its shot :( The drum has grooves in it from the metal on metal wear.

I beat on this thing always. It sees a lot of 5,500 RPM shifts in 4 low. I run 39.5" x 13.5" wide tires. Not exactly sure what my stall is on the converter but I know its been gone through the first time I did the trans build.

What is a good rear band to go with? Rigid, flex? I want something that will hold up for a long time.

thanks!