Neil Mack

Place an ad on ABS, "Wanted GPD2, GP2, GPDX, GP". Start with the most recent models and work backwards. You might turn something up that way.

I'd endorse what Dave says. But I would add that the availability of "better" mounts for less money from Skywatcher is beside the point - for their payload Chinese mounts are heavier and bulkier than the Vixen. But the Vixen AP mount is undeniably expensive, where the old Vixen SP and GP were relatively more affordable. It might also be worth checking out a second hand Takahashi mount if pride of ownership and long term durability are important to you. I can only say that I own a Vixen GP2 and I'm very satisfied with it - it's a finely crafted piece of precision kit.