[Richard Coutts-Smith]

Tony,
Before you get too excited about "A" framing you may want to check your State regs. Most (Aus.) States require a licensed driver to be behind the wheel in the towed vehicle.
(Queensland is one exception). This does get to be quite a lonely and boring job....
Many years ago we towed a Buggy with a fixed tow point on the bull bar, and the front wheels removed.
A two wheel towing Dolly may be an option, but with all the money you have saved in trailer storage fee's the occaisional trailer hire may be affordable?
Rich.