Triac PC conversion

So as I said in the thread about the stepper motors I haven't been on the forum for a long time but I've had an old Denford Triac lying about for about 18 months or more & I really need to do something with it, thought about just using a BOB with a new interface board as others have done but electronics is not really my thing & I already had some drivers from another project I was going to start again some time ago lol.
Will probably use the old control box with what's not needed stripped out & new bits fitted inside. I would like to be able to use some of what's already fitted if possible like the spindle power supply & control, limit switches, e stop etc but need to look into all that still