Wanted: Ruger 30 mm medium or high rings Ruger brand only (set of 2) for Ruger #1

WTB a new or good condition used set of 30 mm rings for a Ruger #1. Stainless or otherwise but not interested in any other brand but Ruger.  Lots of 1 inch available but not many 30mm??? Prefer to deal with seller who has positive feedback transactions to validate. Thanks for looking.