G'day nh1825, we run a tr70&85. Both have been good machines for the past 30 yrs.
If you can get "s-cube" rotors for yours you'll be able to handle more damp crop and reduce stress on the whole machine. I found engine temp is cooler and a little less fuel conSumed. We did windrowed peas , oats ,canola, clover & grassseed with ours. Feel free to message me if you need tips on her.