Absolutely. Soon I'll go back and evolve each of those, then do the same for GoD's two boxes, and I intend to have a living dex as well, derived from each of the GBA games. All I have left for gen 3 now are LeafGreen, Emerald, and GoD.
I've gotta say, completing the dex in gen 3 has been such a blast so far. I have around 289/386 in Ruby at the moment (I'll be able to use Box to sync all five games up at the end), and it's been well over a month. For comparison's sake, I completed the gen 2 dex in two days.>>37341803
Nope. There are some 85 shadow Pokemon in GoD, and there are only 60 slots per box.