I dont know for sure, but those guys at AoA are knowledgeable. I would believe them. They've never steerd me wrong. If you cant find a repair kit, you might have to take it apart and see if you can spec the orings yourself, and hopefully theres no valves that need to be replaced.
I bought a Hill pump and a couple of rebuild kits to keep me good for a few years. I got the kits from StraightShooters. If all else fails, and you cant revive your pump, try the Hill pump. Its well built and easy to fix,basically everything you need is in those reseal kits, theres even a new valve in there in case you need it.