Thanks Graham, that's really helpful. I have ended up buying a used budget one (Stagg) in the hope that it will give me enough of an experience to see if I will like it, should be here in a few days. I am also a little worried that my guitarist sausage fingers will struggle on the smaller fretboard, they certainly did on smaller ukuleles.
According to one of the manolin forums, anything under £1000 seems to be classed as budget and I am not prepared to spend that much. I will have a look for the mandola, that sounds like it could be a good option too.