Spend some time over here,
www.danwessonforum.com Jodi has tried to compile as much information on the DanWesson from the web into one location, I own four but no small frame guns but I can help.
357 models
11
12
14
15
but no model 16
715 the 7 stands for stainless
barrel lengths made for the 357 range from 2 1/2 to 15 inches
Models
11 and 14 have fixed sights
12 and 15 have adjustable sights
VH shrouds have full under lugs
average blued 357 with 6 to 8" barrel $250.00 to $350.00 stainless another $100.00
10 12 and 15" barrels will run you higher the last 15"barrels that were sold
barrel and shroud went for over $600.00.
The factory case adds about $75-100 extra grip $25-30
I have articles and assembly instructions if you want them, they are also on the website I posted above.
New barrels and wrenches are available from the factory
https://shop.cz-usa.com/home.aspx?CategoryCode=27If you are looking at the Stainless 357 at the Everett pawn shop pass on it it has a cracked frame.
Here is a picture of my nicest one, it is the only one made in 460 Supermag

Good luck
Dave