Maybe its just me, but I wouldn't want to risk someone who I do not know pulling an expensive boat on a trailer for 600 miles, anything can go wrong. They hit the brakes a little too quickly, the trailer jackknives and the boat comes off the trailer (happened to a friend of mine). The wheel bearings burn up and the rig is stuck on the side of the road, hopefully with the boat still on the trailer.
I would pay a licensed flatbed hauler to hoist the trailer onto the bed and transport it to you. It will cost yes, but it will get there. It is a one time only cost, best of luck getting her home.
I would pay a licensed flatbed hauler to hoist the trailer onto the bed and transport it to you. It will cost yes, but it will get there. It is a one time only cost, best of luck getting her home.