Re: 1911 22lr?
Spend a lot more money and get an early Colt Ace, not the WWII, $4000 one, but the one made in the last thirty years or so. A slide not mated to a frame will not bode well for either. As its fired, the fram will mate to the slide and vice versa. Which slide shall it mate to? Unless CNC and specs are amazingly the same, I don't like conversions for 1911's.
High Standard Victor, Supermatic, Citation, etc.
ACE
S&W 41.