Got all the missing parts from it from R5-D3 surplus for $10. I found I had one of the cam lok connectors that fit the panel in my welding drawer and have 5 more coming off ebay for $25 shipped.
Ill probably start by making a basic head from something like an arbor press. The real ones are incredibly expensive, even used. Even cheap ones are $400 on up. About 3/4 the way down on this page, VTA prefix: http://www.emcgrath.com/catalog/welding/welding.html
Here are a few pics, Front:
![Image](http://farm8.staticflickr.com/7065/6936610980_34cca4df18_z.jpg)
Hughes VTW-29C Capacitive Discharge Power Supply by macona, on Flickr
Inside in the dark, the big glowing one on the left is an OC3 voltage regulator, the small one on the right is a 12AU7, and the two in back are the 2D21 xenon thyratrons. And below that is a video of the insides working. The thyratrons glow when they are conducting charging the caps.
![Image](http://farm6.staticflickr.com/5446/6932794328_6feda58be0_z.jpg)
Hughes VTW-29C Capacitive Discharge Power Supply by macona, on Flickr