I have one in the works off some old VanVorhees parts I'm wanting to resurrect, there is another upper as a WIP and strobro has a M11 one working that might be a thing we can port over to the M10.
It just takes time, most of us have a day job. Hell, I've built 1 reweld, a VZ58 and I'm working on a second reweld and havnt gotten back to the 22 kit. Life seems to always happen then I get distracted.