Last year I upgraded my PCNC with clearpath servos and an ISO-20 spindle.
Its worked well enough that I'm sure I won't be going pack, so all the used parts are now for sale.
Both are listed on Ebay listing number(s)
TTS:124484468015
and Parts (including mechanical parts from power drawbar)
124484460109
If the auctions don't sell will sell for less than minimum bid for local pickup.
Paul