In 2002 Lunar did a twin axle at the weight you are looking for,think it was a Solar 615, but from then onwards twin axle vans only tended to be heavier
If you are in the Caravan Club you can do an outfit check on line .Atfirst sight the weights look ok for an experienced tower but better to check if you can with a specific outfit.
You cannot legally tow more than the car's maximum towing limit, which you will need to check the V5 for.
Provided that the towing limit allows this, then much will depend on what engine your Golf has with respect to performance. My gut reaction is that if it's a reasonably powerful 2 litre diesel (140/150bhp) you should be ok but anything less and you'll probably be struggling.
You'll almost certainly need a Category B+E licence extension if you have a post-1997 licence.
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