Vintage Synth Repair

I know this isn't a synth but I'm sure the tact switches were used in many synths as well.  Please help me find Panasonic part number Sor-122hs.  I've been looking to purchase one for months.  All I can find on the internet are places that want to sell me 500+ units of them.  Roland/Boss doesn't have them in stock and Panasonic plays tells me they can't get it.  Any help greatly appreciated.