I don't see it on the website but does Larken sell things like ACME leadscrews/nuts or other hobbiest level parts (v-bearings etc)?
We sell cnc routers, controllers and servo drives, sorry no linear components.
I get leadscrews from Kerk motion. They make a great screw with delrin nut.
Manufacturer of CNC routers and Viper Servo Drives
www.LarkenCNC.com and www.Viperservo.com