Well, I'm an idea man, always have been really, so theory is a good place for me to be, but sometimes when you've got a dozen different ideas all pulling you in different directions, there is a very real danger of either stalling out somewhere in the middle, or just plain biting off more than you can chew and subsequently choking on the whole lot of it. I actually went back to school after being self employed as a PC / home LAN tech for about 8 years, so it took me a while to figure out that sometimes a lack of structure and consistency can, in and of itself, create a pretty serious bottleneck, but it is finally starting to sink in. Never much cared to be tied down to any one way of doing things, but the more I work on improving those skills that demand a regular and consistent dedication to technique, the more I realize that its something that has been sorely lacking in my life. It probably wouldn't kill me to pick up some work in a shop to be honest, but this is really more a "Zen" sort of a thing for me, and I'd rather use it to destress in a solitary down-time environment at the moment.
All the same though, I'm starting to think you're right about getting into TIG right now. I picked up a thing or two from my brother about building kilns, so I could put an oven together that could hit 400 degrees if I needed to, but that means seriously getting into oven building, and heat treatment of aluminum, and TIG, in addition to what I'm already doing with electric conversions. With the skills I have right now, I probably will get a much stronger joint out of a can of hysol 9430 and a good lug than a TIG weld. Even if I could run a pretty solid bead, and I could bring the areas that have been annealed back up to something like a t3 or t4 with age hardening (which I'm guessing is a little optimistic, considering that it won't have any sort of proper solution treatment), its still probably not going to out perform a proper aerospace grade adhesive with good sheer strength in most applications, without at least a good ten or 15 years of wear.
I'm thinking that for now, maybe I'll do some "screwed and glued" aluminum frames and focus on getting the router finished, then maybe take a crack at building carbon fiber frames like you were suggesting, only maybe with prefabbed tubes and aluminum lugs instead of wrapping or vacuum bagging something myself, since I will have a little experience with a similar design, and the ability to run off custom lugs on the router at that point.