Unimog Club UK

Perhaps the best model for you then would be the U900.419, there were a lot of these sent over to america and sold as the "Frieghtliner military tractor".
obviously this means that most of these are in america, however you do get them over this side of the pond to in europe.
The reason I think they'll suit you is that they generally had a loader on the front and a backhoe on the rear, which folded over the rear body to make it compact.