Hello,
Currently there are two manufacturers selling Filter Bank clones with inductors, but they aren’t cheap.
There is the Club of the Knobs 907a for 740 Euros which is about a $1,000. As of yesterday Kazike says there are only four left.
ALL people using inductors are having them done by the same guy - who custom-wound a set for a hobbyist building a replica module. He’s by far the cheapest, anyone doing small runs (or one-off’s) wants more than that. I think he found a willing market in the small builders, so they got a good price for doing multiple sets. From what I know he’s the source for all the European “clone” modules - although they don’t look like the originals - they probably sound just fine!