Unfortunately, the reality is...there is nothing that great in town for what you're looking for. Every store does have used drum sets but won't sell single used parts. They don't stock up on misc stuff like that.
If you're looking for "bottom" skins aka resonance heads, I would definitely recommend buying new. They are not that much money. I'm an Aquarian fan myself (but any head is fine and it's just preference):
I need a ride cymbal and stand and a tom arm that can branch off of another stand.
....I could probably help you with this. I recently converted to a rack set up and have lots of arms and tom forks, etc etc.
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