I'm far from being an expert in these, but my personal preference is to get a Hankin (or Hankin clone). I think they are a much better looking unit and more authentic.
I believe Felix (Game Masters) has kits available...
http://www.gamemasters.com.au/f1.htmI have not seen the units in person (linked on Ebay), however they do seem very popular and I have played similar units sited at a few licensed venues..
