Yes, I have seen just the Miller Parts I'll look again
— Mailing Address —
Miller (MPR)
159 GREENE STREET
PO BOX 425
KENWOOD, CA 95452
— Additional Contact Information —
PHONE: 707-833-5905
I heard that Mac Hodges has the Miller reducers in his hobby shop for $125 USD. You will have to Email him.
http://www.hodgeshobbies.com/ Here's his personal Email address
[email protected]