Not sure if the guy would be willing to ship but figured I would let you know.
https://www.northeastshooters.com/xen/threads/ruger-new-model-blackhawk-45-long-colt-in-stainless.430674/
For sale is a set of Pachmayr grips for a Ruger Security Six. Only fits those with a serial number higher than 151- prefix. I bought these as NOS (I discarded the packaging) but decided to go in different direction. $30 shipped, money order, check, or Paypal F&F. First I will take it post...
Skinner makes a peep sight and front sight - scroll down to the bottom of the page:
http://www.skinnersights.com/ruger_firearms_22.html
You would, of course, need to have local gunsmith drill/tap for front sight.