Caravan movers

At 3500kg the only type that I think will work is the ones that actually drive against the tyres e.g. Purple Line http://www.purpleline.com.au/

Make certain that you go for the heavy duty unit in the 4 wheel version. Anything that uses the tow hitch is not going to work.

I would also recommend that you have a decent size battery and make certain the wiring is heavy enough to carry the required current.

Once you are trying to move 3.5 tonnes....the difference between dead flat and "little or no incline" can make a great deal of difference.

this fork lift is not rated to lift, carry or move 3.5 tonnes http://www.crown.com/au/forklifts/counterbalanced-trucks-fc-4500-index.html

Serioulsy 3.5 tonnes is a lot of weight.

cheers

Rusty,
I have a AW3 Aussie wheel mover for my 3 tonne tandem van. I connected it using the jockey wheel post. The van is parked in my drive, and if a car parks across the road, I don't have enough room to get it out with the car. (someone parked there for 2 weeks while on holiday :-( ). It has been really useful and has some power. If it is wet it does slip a bit. I put a plank over the gutter so that it is a good level tow. It also towed my Brthr in law's 8ft wide tandem van out, and twisted the jockey post mount doing it. I run it out clear of the gate then turn it gently on the bitumen. It hasn't let me down yet.
Connecting to the ball for me, would be a problem as it would tend to rotate around it and the post is more rigid..
I didn't want the wheel driven one, as it reduced the under van clearance.

Good luck

Bill

Thanks for the replys
I pulled down part of the fence to allow better access- will do away with caravan movers for time being