you might want to do a bit of research about having the non-fluted cylinder fitted.
not sure where you're located, buy I have sent a gun or two back to Ruger. With insurance, next day (this is required on handguns), you're talking about ~$75, one way.
second, I'm not sure that ruger will install the non-fluted cylinder in a model that is originally made with a fluted cylinder..........This is not to say that you can't find a smith to install a non-fluted cylinder for you.
Finally, If Ruger will do the cylinder swap for you, there's the cost of that.
There is no practical difference in strength between a fluted and non-fluted cylinder.
Just a few points to consider. Hope that helps.
~c.r.