Mazak QT20 Retrofit

This will be my final attempt at finishing this project !! I had everything wired and fitted back in 2023 and the machine was running well under Linuxcnc. 

However, I was borrowing a servo drive and motor from a Mazak VQC20/50 that uses the same motors and drives. The mill was also not working at the time, but I managed to get the original control cards to work and that machine is up and running now. So now I'm stuck with the lathe that has no x-axis at the moment.  

The motor's commutator is damaged, the drive doesn't come on, and I had to take the tachogenerator from this motor to use it on the milling machine. So repairing this won't be easy. 

Somehow servo motors and drives are nearly impossible to find here locally in South Africa. The few places that do sell them here are very expensive and they have to import them so it will take some time as well. There are some drives and motors available from AliExpress but I'm not sure if this will produce the same results.

Does anyone have any suggestions ?? I have some stepper motors and drives laying around but they require step/dir as input and I have a Mesa 7i77 card that uses +-10V . For now I have the x-axis disabled and I'm trying to get all the other fine adjustments sorted, Which I also need some help with. 

First is I want to change the logic of my chuck opening and closing. I'm going to add some safety's and I also want to change the way it operates, currently it has two outputs, one that opens the chuck and one that closes the chuck. How can I get a single input to toggle between the two outputs. I'm playing around with Classicladder, but if anyone has an example of this I would appreciate it.

Secondly, I want to add a live tooling spindle to the turret so that it can be used to perform milling operations as well. Mounting a spindle would be easy enough, but how would I implement this in LinuxCnc and what would the setup look like? How would I get my spindle to orient ? 

Thirdly, I want to neaten up my GUI and add all of the necessary buttons and controls needed. I'm currently using Gmoccapy with some added GladeVcp panels. Not that there is anything wrong with Gmoccapy, but I need to adjust all my buttons and LEDs, so before I create new panels, Is there any other alternative GUI that is better suited for a lathe with touch screen functionality.