Need help with a Ruger frame...

I'm looking for a frame that will work with a Ruger P345 kit... As it's a single stack, so it's thinner than the other 'P' frames. I've only found one model of it online, but it's exterior only & $40... Doesn't help much unless I can wiggle some altered internals into the outer profile... I'd be happy if I could work it into the People's or Zoomer frames.

Thanks for any help, & for this awesome site... I've been trawling Odyssey for months since it seems Grabcad has been going gun shy.