NO there is not a production barrel made in 22lr for the 93. the mkii is the same gun just in 22lr vs 22mag. so with out some custom work you can not just simply out a 22lr barrel on a 93. Sounds like your wanting some nice quad features on a gun half the price. I suffer from the same problem.
Thanks man. I wanted to make my savage WMR into a .22lr since that's my favorite cal, but the replacement barrels are just as much as buying the rifle brand new! Oh well, the ruger I have now is sweeeeeet. Maybe some day I'll get a mark ii.