One of the key factors was the access to the plot. As we've mentioned before, this is narrow and has a dog-leg turn; not something easily negotiated by a van and trailer, so the truck it was.
We bought it from ebay, picked it up on Saturday from Penrith and drove it back to Mum and Dads where it will stay. The journey back was good fun (even if we were overtaken by a caravan on the M6!), Darran now has the hang of the steering too so roundabouts should be better executed next time!