I've been upgrading my space and some of my gear as well. I was putting together some of it last night and realized I was missing some gaskets. LHBS is closed on mondays and I did a quick google search only to find out a place called Bubba's Barrels is about 20 minutes away and they carried what I needed. I wasn't sure about it as they appear to sell mostly larger scale equipment and I needed just a couple silicone gaskets. They were supremely nice and helpful! They even picked the order and had it ready for me when I got there. I don't need gear that sized but if I was in the market I sure would call them.
Bubba's Barrels
Bubba's Barrels