The later pull type graders with rubber tires....what kind of road speed can you get to move one? I'm pretty sure I've seen one or heard of them moved with a dump truck long ago. Curious if anyone here has towed one, or is old enough to remember. Thanks

How good are the tires and do you have implement tires or truck tires? 

I would need to put new tires on it. It's supposed to have 900x20's on the back, but everything is very old. I think it could be a candidate for the scrap yard if I don't save it. I can't trailer it. It has a 20' wheelbase and a 12' tongue. It is about 9.5' wide in the back too. I would need to hug the shoulder. I have a dually 4x4 that should tow it, it looks heavy, but hard to estimate.

If you’re located in the United States most states you can pull anything with a tractor on public roads as it’s used for a “farm implement” except on interstates. Of course if you have a long distance to go then trailering with wide load is about the only option.

It's too far to pull with a tractor. I would need to go 200 miles, but I could pull it with my pickup with a slow vehicle sign. I would try it if it would tow 40-45mph. It was mentioned above some have been towed up to 55mph. The thing is, I would need to buy it before I could try it out. At one time it belonged to the State Highway Dept. I would bet they towed it wherever it was used.
I think the rear would tow fine, but I'd worry about the front wandering, or wobbling if the steering can't be locked. I wonder if it can be chained tight. I've flat towed quite a few vehicles, and if the hitch beam wasn't so long on this thing, I'd use some axle clamps on an extended tow bar. 
I don't have any experience with one of these graders, and really question how they would behave once they get over tractor speed. I would put new tires on it.
It would be cost prohibitive to pay for transport.

Used truck tires would be just fine. Grease/inspect the wheel bearings. 30 mph is about tops.

I'm thinking if it is possible to lock the steering so it only turns at the truck hitch, maybe it could be pulled faster. 30mph is probably too slow to take it 200 miles. I think it would need to be pulled slower than it was designed, due to wear, and there isn't a way to know that effect until you're on the road.
I once pulled a wagon. It had tires in all 4 corners, and a center steering front axle that I could lock so it wouldn't turn. Some guys said you can't tow it at speed, but it went freeway speed behind the truck like it wasn't there for over 200 miles. I certainly wouldn't think of doing that with this grader, but I think I would need 40mph to have success. Even at 40 I might get a few fingers. I would not be on any freeways for sure.

Haul it on a lowbed with out riggers and angle blade so it does not stick out to wide. The old wheel bearings won’t hold up to that pace for that long of distance if towing

If I had that trailer I would use it.  If I got the grader for free hiring transport would still be prohibitive. I don't want to be underwater too far.

I suppose I could pull off and check the bearings every so often, and keep greasing them if the seals are gone. The grader has been yard art for quite some time, and if it isn't bought for that, it probably will be cut up. I'd hate to see that, but I probably have a screw loose trying to prevent it. It's a model 125, but I haven't found any info on it. Any of you guys familiar with it at all?

Is this a power control grader?  If so those are pretty uncommon.  Is the engine still on it?