Hey Steve - lookin good!
You owe us a story! First off - why gauntlet? Also, are you working off plans? Whats your timeline? What kind of controls? Or... are you being mysterious on purpose?! 
Ok. I'll try and answer your questions in order:
Why Gauntlet - Well I used to LOVE this in the arcades

I'm a HUGE 80's fan of video games (and music)
I'm working off the plans on the Jakobud site, so I hope I get it right.
I don't have a timeline, but the sooner the better I say

As for controls, I'm going to use the Happ color coded ones (Yellow, Green and so on)
This is also a dedicated MAME cabinet just for Gauntlet (Might build a Gauntlet II one as well)
I'd love to build a dedicated Marble Madness, Temple of Doom and Peter Pack Rat but I can't find any System 1 cabinet plans.
Also, I plan on building more dedicated cabs in time to come. If I can't find any System 1 plans then either a Juno First or Rolling Thunder cab (once again need plans)
Hope this helps answer your questions