AFAIK, Iron Pony still matches online prices and you get to see the date codes before you check out. That said, I usually just order mine from Amazon due to my laziness.
I can help you mount & balance. I have a HF stand with all wheel contact points replaced with plastic and a static balancer but I don't have a SSSA adapter. My rule for helping friends change tires is, YOU provide the extra hands to push & hold the tire, apply lube, and help me drink the beer that YOU bring (I prefer craft IPAs).
I'm in north Gahanna (Blendon Woods area - 10 min from IP) PM if you want my cell number.