Addendum.. In another life I installed ballscrews to CNC lathes and mills and was also a service tech for a couple of CNC machine suppliers hence the nic.
I would be wary of EPOXY RESIN as it has a tendency to fracture under stress. You will encounter stress in more than one way LOL.Bob
30% less I would consider a bit of an insult so don't be surprised if you don't get an answer.
Last spindle I got was this one.