Doesn't look like any bargain to me......but then neither did that D6😆
I'm not familiar with the design of this model but those front axles seem to be a retrofit to get the pan to take a bigger bite. I think they are set quite low and wonder if you operated in rough ground, the drawbar might start to bottom out.
I am just a dumb farmer not a big time dirt mover, but those wheels look way to light to haul 7 yards of dirt to me.So do some measuring of the box and see how much the seller knows what he has.As for the welds anything can be broke but my guess is it was designed for a wheel tractor not a Cat.If you are a very careful operator it may get a small job done for you,but not years of trouble free us.
Ray
That looks like a farm tractor capacity one to me too.