Man, for just starting out, you find some really, really cool stuff!
Well, the second Admiral would be easier, since it's likely just like the one you just fixed... But I'd probably go with any of the black and white sets you have - pick one that looks complete, with a good picture tube.
Stay away from color until you have a couple black and white sets under your belt. They're complicated, the tubes can be expensive and hard to get, and it seems the high voltage sections are alway running right up to the edge of their specs. And, they're newer, and a somewhat different capacitor philosophy must be employed. By all means, I look forward to seeing your color roundie, and seeing it working. But I also don't want to lose a fellow TV lover from the hobby because he went insane trying to get the blue to converge in the upper left...
Always work within your comfort zone, and tackle realistic projects for your skill level. It is daunting to jump right into a huge chassis without being familiar with what all is involved. I'm really glad that you've gotten your first TV completed, and that we on the forum were able to help you get going. (Or, at least, I like to think that we're useful...)
Above all, have fun! Pick a project that you think will be fun to work on, and that won't frustrate you too much. That's the whole point of this hobby. Television is meant to be enjoyable. Find something that you like, fix it up, and enjoy it. If a set looks too complicated - leave it for a little later. Once you have taken apart and repaired more TV's, you get to know how everything is put together, and you get a feel for how things like this are constructed. This familiarity makes the task much less daunting.
And, of course, if you have any questions, we're always here to help.
-Ian