That's handy - you should be able to reuse that. It appears that the left hand three connections are for the secondary (black-black and blue-blue), forming the centre-tapped secondary. You will note that the centre tap is currently connected to ground. If you have 150Vac, you will need to remove turns from the secondary (taking the same number of turns off each leg) but luckily the secondary is on the outside and you won't even need to dismantle the transformer to do so. If it's 150Vdc, it should be fine as it is. The 3kW isolation transformer I used is about £140 https://www.screwfix.com/p/carroll-m...mer-110v/43658 - depends how much weight and space you want to free up.

I originally tried to fit everything in the original operator console but that was a daft idea. Much better to have a cabinet on the side of the machine where you can work on it, with a remote display. With my Acorn system, the PC, display and keyboard etc are on a desk alongside so I can run Fusion (and music) and operate the machine from there. You soon get a stiff neck if you mount the console at the machine around head height.