Phil, not sure if this helps but here you go.
The link to the Cascos site is:
http://www.cascos-lifts.co.uk/
There are some nice and endearing videos on there although a little old possibly. However I do like this nostalgic feel to their setup. I like the look of their products the best but not sure on pricing yet!
http://www.cascos-lifts.co.uk/videos.html
I guess they must have a sole UK disty operated by Hofmann Megaplan. I was e-mailed over the brochure on Friday very promptly and am due to speak to them to get some steer. They are just up the A1 west of Huntingdon so might pop up and see what they have at some point.
The second option are these guys who are even more local to me:
http://www.garageequipment.co.uk/
The third option I am looking at are these guys in Alton:
http://www.liftmasterltd.co.uk/lifts
Just found these guys who seem possible as well but not really an option for me as they are in Birkenhead:
https://www.garageequipmentonline.com/products/
I am mainly focussing on a 4 post lift for several reasons. I like the ease and one man use of the 4 post over a 2 post. I can see faffing around positioning arms on a 2 post then extending them and getting the pads right will be a constant pain. With a 4 post it is nice and easy just to drive on. I know opening a door on a 2 post will be a boon as you are constantly fighting to get out and not hit your door on the post. I have no idea if my concrete floor has steel bar re-enforcement or the point loading needed for a 2 post. A 4 post presents less of an issue. I like the flexibility of the 4 post with the optional castor kit. I can still work on wheels, brakes and suspension on the 4 post as will get one or two axle lift beams.
I think the 2 post would make more sense as gives more access generally, easier access to wheel, brake, suspension and also needs less height. I just prefer the safety of the 4 post over a 2 post also as I will be using it for permanent parking for two cars as well. My height is now abundant so height is no issue.