I lived there a long while back, you used to be able to pay a flat rate for the trams for a few hours, everyone under 60 spoke very good english and we never met anyone who wasnt really friendly, I would suggest contacting someone from there in a model club to find more details as to whats better than elsewhere.
On a trip to New York I really struggled to find somewhere to find that special treat for myself, ended up way outside NY in a town called Glenhead where I finally got what I wanted.
Dig around before you go I say!