Roger,
the nearest I got to this was a Vixen, and I last saw that disappearing down my driveway with Robby, I called it a boomerang, but I doubt I will see it again.
It had the 1.25" fittings on the top and rear, but had a 2" fitting on the focuser side. Maybe you remove this and substitute a 1.25". They were quite cheap, just tell Robby that.
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