Thanks very much - we also have three Unimogs (406s), however one has a cherrypicker, one a faulty digger and one a tipper back and mower, but also has a dodgy clutch.
Will think about it - having driven one of our Unimog 406s down from Preston (with no brakes...), am aware that fuel will be about £75 from SOU. Bear in mind that our SAME tractor's wheels slip, but that shouldn't be a problem with your vehicle.
The Disco is about 15 foot from solid land but has hit a wet patch in the marsh - the rest of it is drivable upon - but you probably shouldn't risk it with all that gear!
Lovely idea and I appreciate how much effort it will be - will consider it and post again later - our village has a communal Fergie tractor that needs some resurrecting but has a winch and ground anchors.
Thanks again and will further inform you soon.