Good luck - hope you get lucky, always tough getting hold of this kind of stuff in the UK unless your happy to cough up the shipping....
This for a new cab/extra controls? (
really like your cab in the projects forum...)
Just so you know, Roadblasters steering assembly is a bit of a "special case" for hooking up to a mame cab (I'm assuming that's the plan here).
It looks like a yoke (although it does not have forward/backward motion, so can not be used for 'yoke' games like Starwars). It is also not a 'pot based' (potentiometer) control like most 270degree controls - it is actually an optical device like a spinner/free spinning wheel that is mechanically restricted to 270 degrees. So it would need to be interfaced to a cab like a spinner would , but you can't use it for spinner type games (sorry if this is confusing).
This makes it great for Roadblasters, but akward to configure for almost anything else. Others have converted them to pot based, but then you may as well get a pot based wheel/yoke in the first place....
Sorry if you know all this, but when it comes to driving controls in mame there is more than one way to skin a cat....
http://wiki.arcadecontrols.com/wiki/Driving_Controls