Yes, go for it. Fair price, even with a lot of welding work, you may be lucky and get a good one.
I ran a FV1604A, hence “the handle” and really miss it now. You have to enjoy lying on your back with a grease gun. They are a great truck to drive, bags of power. If you want to keep your clutch intact, careful gear changes are important as there is a lot of heavy metal rolling around down there, but a very rewarding experience. Can’t advise doing a three-point-turn in the High Street though!
Like you, I loved the look of them, how or why they designed them that way, can’t quite understand, but all the wings unbolt, so you can get to most of the rust. The cargo body likewise is bolted and can be removed by two people. Cab top/door bottoms and lower section of the spare wheel cover usually rotten.
There are at least two, maybe three, running examples near to your location and a possible source of used spares in Northumberland.
The real expert on hmvf is, as Sean says, the extremely helpful Clive Elliott, who will no doubt, be on this post soon to give affirmation to all words on the subject. (Hope your broken Shorland following your axle breakage at War and Peace is fixed by now, Clive)
Unless health and safety/road regs changed since my time of ownership, it can be carried on a standard car transporter. Cost? I would budget for around a £1 per mile, if you can get a backload, but I could be living in the past. Sean's estimate is probably nearer the mark.
Good luck;
Mike