In your area, I would rent/hire one for a weekend and then see if your itch gets scratched, or if you need to go to the M3W doc and get a prescription for one.
I would think any of the one or two year old M3W's would be good to buy, but mileage and options are all isolated to that one M3W. There should be a fair amount of used ones in the UK, and some probably considerably lower than new.
I wish you luck my friend. As previously said, there is a wealth of information on this forum and you'll find the guys/gals are very helpful. There are quite a few I'm sure local to your area.
Happy hunting...
