Rich customer or not always a moen. Why any other brands there's no parts really. No wants to pay me to take it apart, take pics, pay me to research, order the parts and go back to install it while the faucet is leaking and ruining the counter top or whatever.
If they'd pay I would make a tone of money!
Kohler will overnight parts, Hans Grohe will do the same but even better is their us headquarters are right up the street from me.