That is one neat machine. I've always loved grader conversions like this, and it doesn't fall with the ones I've seen. Good luck with the auction and I hope you win. I'd love to see more of this here. You may want to check with the HCEA, as someone there may have info on this machine.
I went and looked at the 3 molines he had on purplewave when they was for sale. All 3 was nice tractors well cared for. The story on the grader was his dGary Base and his dad quinten had a road grader that was slow and didnt have a road gear in it. They also had the U that had a good motor and fast road gear so an idea was hatched to put the 2 together so they could grade field roads. They did a great job on it. The GTB was an older restoration Gary and his dad built together years ago and used the tractor to grind feed. The 44 ztu was restored and only drivin in parades and taken to shows as was the other 2. His father had passed away and they was having trouble with people breaking into the farm stealing so gary descided to sell it all off. I ended up with the gtb couldnt be happier its been a very good runner. Not sure where the grader ended up but it was out of state.