WTB: NY: Trackball for Missile Command with PC interface

[DavidInvenio]

Greetings - I am trying to build my own control panel to support several games (running on pc using MAME).  One of the games I want the control panel to support is Missile Command.  I already have an X-Arcade Tankstick, which has a trackball complete with a USB interface.  However the trackball is only 3" and while it's nice, and the Tankstick works great (and they have great support) - I want a panel that has the exact same trackball (or at least the same size) as the original Missile Command.  I have already purchased a set of fire buttons for my reproduction.

I don't mind having to do some assembly, but I am definitely not a hardware engineer!
So obviously I would prefer a unit that is already assembled and includes a usb interface for use on a pc.
If I have to buy a separate interface card and do some wiring/soldering - that is perfectly ok.

Can someone offer some links to places I might find such a thing?

Peace!

PS: I am in NY but obviously I don't care where I buy from! I just saw the sticky post mandating a location in all B/S/T posts! LOL

[yotsuya]

The Missile Command 4" trackball is awesome when rebuilt. Good luck finding one.

[DavidInvenio]

So... what you're saying is that after I find a good source for the parts and figure out how to build it... I'll be able to make tons of pr0fit by selling them here?!  :-D  w00t!