A good holster and belt makes all the difference when carrying all day. For IWB, my preference has been the Milt Sparks VMII. Conceals well even with a full size as well as a compact, and is comfy to boot.
I looked at a Kahr 45 at Cabelas. It was a very nice size for carry but I have heard that Kahr's can be finicky but believe that was for the 9mm. I have not found much on the 45 model.
Look at the Bersa Thunder compact ore the EAA Witness compact.Also I'd the guy wants a DA fun why does everyone ALWAYS try to talk him inti a1911?