Sportsman Outdoor Superstore has police trade ins w/2 magazines for $379.00 best deal on the internet right now,nice pistols have one myself and a 4566 TSW of which they also have an inventory of,good luck.
Closest thing I can find locally is a Lew Horton 945 at GBFirearms... https://www.gunsamerica.com/917389346/Smith-Wesson-model-0945.htm
Now this place is what you'd call a High End Dealer...
used to be the best shop within 50 miles during the 80's & 90's,
now they just cater to the rich bleepers with BMW's...By Appointment Only.
There are other 45xx-series available, 4505, 4526, 4546 for full-size, others in Mid-size & Compact...
and I even know of a nice Stainless CS45 with 3 mags for sale locally for $700...PM for more info...
just kinda depends on how far you want to drive & if it's a 4506-only sorta thing