Yeah, I too figured I could manufacture something to do the same thing, but this piece looks like a specific built part, and I've seen it on other cars as well, so some vendor must sell it.
If I can't find it for a reasonable price, I may try to make it myself, but kinda like the UUC clutch stop I bought for $25. I could have made it myself for $10, but when the real deal is only $25, why bother?
If it's cheap enough from the direct source, I'll probably just buy it.