Hi Marcus and welcome aboard. Gaming and collecting a long time. Is that arcade stuff or would the candy cabs be your first foray into this side of gaming?
Whatever the answer, loads of really helpful folk on here and candies come up from time to time on here, prices are high just now, as with everything so be prepared to pay if you want a nice condition machine.
Some Europe sites have always carried a good stock of candies but I think leaving the Euro has pretty much closed that avenue for now.
Lots of folk around the North too, and you have NERG on your doorstep if you haven't been before.
Finally, whatever space you have set aside for your cabs, it won't be anywhere near enough. They breed, very quickly......