Wire dispenser will help you unwind
A BARBED/high tensile wire unrolling device is designed for either spiking into the ground or bolting into the back of a pick-up truck. It can also be used to re-wind the wire on to its original coil.
The Knox Wire Dispenser comprises a universal stand with two different centres – one for unrolling high tensile wire and one for barbed wire. Removing a single split pin enables the centre fitting to be changed.
Price of the dispenser starts from about £50 (01624-674434).