Getting a grip - K-S2, K-50, K200

A fortunate opportunity got me a K-S2 with the pancake 16-50 (and a second K-50 in good shape and no solenoid failure). Two surprises:

#1 K-50 grip is far superior for my average hands as is the surface material. K-S2 is somehow clunky and awkward, They basically weigh the same but K-S2 feels front heavy, unbalanced. Not as pronounced as the K200 though which feels like tipping over all the time.

https://www.pentaxforums.com/forums/pentax-cameras-compared/?c1=Pentax+K-S2&c2=Pentax+K-50&c3=Pentax+K200D

#2 Despite digging through tons of reviews I hadn't noticed the interval composite drive mode before. Keeping all the shots of the sequence makes it a good alternative to the otherwise great real time Olympus live composite. I was looking for a tethered setup instead to be able to undo step by step, the Pentax option seems like a good solution for still life and product photography when using continuous light in layers instead of flash(es).

https://www.pentaxforums.com/reviews/pentax-k-s2-review/shooting-drive-modes.html
https://learnandsupport.getolympus.com/learn-center/photography-tips/browse-tips-by-camera-feature/live-composite-mode

The other remaining killer feature worth upgrading for seems to be pixel shift and maybe the wifi/bt app. The articulated LCD is also nice which leaves the K-70 and K-P (tilt LCD) as last contenders if not getting a K-3 II (fixed LCD, other batteries). All are either nowhere to be found used or way too expensive refurbished for my Pentax DSLR side show.

Anyway - I'll ship the K-S2 and surplus kit lenses to MPB, they'll fund the K-50 and travel expenses getting the deal home.