Can you get away with a courser rack ?
Reason I ask is we used to buy 2 mod, that's about 12 DP rack 25 x 25 or thereabouts in 1 metre lengths for £35 a length from Italy.
May still be some brand new lengths kicking about. Pinions would have been 15 and 30 or 20 and 40 but probably got some of them somewhere.

Also converted a loading robot for GKN at Chesterfield that loaded cylinder liners into boring machines, took 1.5 meter racks off and replaced them with 3 metres ones, the old 1.5's may still be kicking about, again probably 2 mod.

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