This colum has many good ideas!
For your best bet, an old H&R .22 in good shape with a short barrel should fill your bill!
Small yet capable of handling hit .22 short H/P's or even some L/R cartriges, the little revolvers might be enough?
Tarus is really trying to give what the public wants.
As was stated. perhaps a customised Ruger Bearcat ( like the new short barreled gun just out) might be what you want.
A Bearcat has plenty of extra metal to work with so a competent gunsmith could bring the qualities out!
I sometimes carry a H&R Model 1906 7 shot .22 It's apparentlly chambered for the .22 long, but I prefer to shoot modern HV Short HP's and for pure fun shooting, I shoot Remington CB Caps.
The .22 L/R is anemic by todays combat standards but it's also been used sucessfully over the years very effectivelly!
Heck there's even the tiny NAAarms mini revolvers...
With thought and some good searching, you can probablly find a workable platform for your Dream Gun1 Carefull thought and planning could bring out a perfect classical design and make you the hit of any BB-Q!
Carefully plan it out, search for a good one, and have it built into what you want unless you have the shop and skills to do it. Good luck,
ZVP