Tapmatic 30TC/DC 1/2" Arbor

Hi,

I'm planning to try and mount a Tapmatic 30TC/DC tapping head on a Taig
CNC mill.

My plan is to mount the head beside the standard mill head, using a
bracket mounted to the T-Slots in the Mill head. The bracket will contain
a couple of bearing blocks for 2 x 1/2 ID bearing.

The idea is that the bearing will hold the Tapmatic 1/2 arbor. a Taig 1/2"
ID pulley block will then sit on top. I'll then run a large Taig Gates
belt from the motor to the pulley.

With this setup I'll get about the same Z clearance as the standard mill
head. My only concern is that the tapping head will be off centre by a
couple of inches. But then the Taig is a tough little beast.

So does anyone know where I can get a Tapmatic 1/2" arbor in good
condition, for a reasonable price? I'm also happy to barter the products I
sell.

Also any comments on my planned setup would be helpful.

Cheers,

Peter.