Most any breakout board will work fine. I am not sure how much trouble it is to get something shipped across the pond but I would recommend buying the BOB from Hillbilly for several reasons:
1) Hillbilly is the one who first (to my knowledge) deciphered the Bridgeport schematics to get the right wires connected to mach. Selling a BOB is the only reimbursement he gets from freely distributing the fruits of his labor.
2) Hillbilly has already written macros for mach which will make it much easier to get things like spindle control working.
3) Hillbilly gives you great instructions. What parts you can remove, what wires to connect where, etc. etc.
4) The Hillbilly BOB is a really nice board. I have purchased 3 of them from him for various projects, only 1 of which was a bridgeport conversion. He also has a spindle speed module to control a VFD and relays can be added quite easily.
Maybe you should contact him directly to discuss international shipping.
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