After receiving my Star Wars yoke today, I decided that my mind was made up. I only have room at the moment for a bartop but I do have the width required to make this full size in that dimension. So that's the route I'm going down.
The yoke had been adapted to interface with a 15-pin gameport, but alas they're like rocking horse sh*t now so after a little surfing, I stumbled upon B-Spec Labs AKI 3.0 - A nifty little dedicated analog interface. I think the same as Mr Do used on his controller.
I am hoping to have this complete pre-painting by the end of the month as I have everything I need here or on the way:
PC: Asus EEE running XP Pro. Bartop is dedicated and it should run SW etc. They're only cheap so could always go down the pc component route if need be but am worried about heat (the juke I'm building gets VERY hot with an Athlon (I know, I know they run hot) laptop.
Control: Original SW yoke and backplate. I am getting artwork from Quarterarcade and Arcadeshop.com. Trying to anyway.

Interface: AKI from B-Spec
3/4" MDF and plan to recreate the bezel surround to match the dimensions dictated by the bartop.
I plan on painting the MDF and getting some bespoke artwork printed for the sides and marquee. Hoping to have a projected Star Wars cut out logo on the reverse.
Wood cutting should be gin tomorrow but I'll get a scan of proposed design posted prior to that.
Cheers