Even if Midwest did have one, which it appears they don't, it would take a US resident to purchase, and then an importer. Given the asking price for a bolt, plus exchange, plus import fees, it becomes a very expensive proposition.
As much as it probably hurts, as mentioned, it is kinda like a car without an engine... and given the configuration, it is worth more in parts than it is whole. Actions are sought after for builds, replacement stocks are constantly being sourced, bottom metal, and of course, the barrel.
R.