Hi Mick,
I'm in the same situation.
Than sum research, right now I'm tossing up
between Skyscan, Argo-Navis or Meade Autostar
with LXD-75 motors. The last two is the more economical
option. With the Autostar you can specify the worm
reduction ratio independently of the axis.
The controller is below $300, not sure about the motors.
See my previous post "look what I have..."
My mount apparently made by a company in Cairns,
so far nobody could identify it.
Good luck with yours, keep us updated.
Mick.
(I better change my name to Miklos, to avoid confusion