Most of the fully DIY guns are 9mm. There's no reason why a 9mm or 45 blowback can't be done, but I get your point.
A locked breech pistol is kinda hard to do without a mill or *expletive deleted*it-ton of hand fitting, and since a lot of the DIY gun community is in the US with easy access to slides, no one really bothers.
J. Stark might have, but it's moot now.
Short of a kyber pass style hand built you probably aren't going to see the guns you are talking about built without at least some machine tools.