Haha, for some reason I love your gloves.
I like what you are doing so far. Very clean and tight. Ive always wanted to build a foam wall and may do that on my next tank after seeing yours.
Keep us updated. I think myself and everyone else on this forum Loves pictures. Lots of em!
I would go with the skimmer. If your tank is going to be 5g, it should be enough skimming. I dont think they make skimmers for that small of a tank so either way, you will have good skimming.