I have a Cajunized SP01T, a SIG 220 carry elite upgraded by the Sig Armorer, and a DW Specialist Commander & TCP
Here is my take- all are fine guns, the CZ and Sig better with the customization than stock. Of the three brands, I shoot the CZ more often, as I shoot IDPA regularly and 9mm is cheaper with easier recoil.
If I was in your shoes, knowing what I know, I’d get the CZ cajunized. If you were not in CA, I’d get the DW TCP in 9mm.
The cajunized SP01 is a joy to shoot, and fits my hand perfectly. Sights are on target when I draw the gun, almost no recoil.
As I don’t live in CA, and have other choices available, I’d go for the TCP in 9mm. Well made, superbly accurate, great OOTB trigger, it needs no aftermarket improvements. I’m a fan of the sight set up of the TCP, as well as the mag funnel. Slightly more difficult to field strip than my Specialist but gets easier every time. It also fits my holsters for the specialist as well. One of my favorite guns.
The SIG 220 is a reliable accurate gun, and much improved after the sig armorer worked on it. I like the gun a great deal, it’s just the CZ ergos work for me much better than the sig.
So to recap, go with the CZ, send it to CGW. You will not be disappointed. Another thought- see if You can buy a gussied up CZ directly from CGW. Friend of mine did that and it accelerated the time it took to get the gun.
Good luck