They really got everything right when they designed the K-frame. For me, the 17-4 came first, about 25yrs ago. I wandered a lot of miles, popped a lot of critters and mulched the landscape with empty .22 hulls with it.
A year later I got a screaming deal on an 18-3.
A year later I found a 14-4 brand new in the box in an old gun shop that time had forgot.
Congrats on the new to you acquisition. Much as I like my Ruger single actions and black powder revolvers, the K-38 and K-17 are superb shooters. They are included in my will. They aren't going anywhere until I do.