However, my choice, and that of many professionals for a truly comfortable, LIGHT and concealable handgun is the SigSauer P232.
I violates two of your rules:
.380 (learn to shoot accurately and buy Corbon ammo!)
SA/DA (VERY good trigger)
The only gun that will save your life is the one you have with you........and this little Sig at around $400 is the lightest, most comfortable.......and one of the most accurate(the barrel is rigid-mount....does not float) guns on the market.
Ideal for women......and men who can stay calm and SHOOT.
They're not rules friend, they're guidelines. You obviously have no need of advice on choosing top flight tools for self-defense.
I'd be proud to carry your rig.