ooooooops.

 I won a K-7 auction. Gently used, less than 7500 clicks. And a Sigma 18-50/2.8 from the same seller.

That changes a few things!

The K-7 brings me a tougher body design than the K-s2, a less versatile sensor but controls I know well. It's definitely not a K-5ii-level system - but it came to me at a surprisingly low price. Since I also have a spare Li90 battery sitting around, it immediately has a spare battery (total of three). It also has the curious 3:2 video mode that I envy compared to every modern camera's 16:9 ratio (I hear instagram has made 1:1 a popular video format; I wouldn't know).

The 18-50 definitely changes my need for f/2.8 primes; even the 50/2 has less interest! It won't be quite as sharp as a prime with so much glass in play, but it does do 1:3 closeups - that's nice! Since the longer lens can do the WR times, the 18-50 has a nice speed advantage over the 20-40 Ltd and the 18-50wr. 

It looks like the basic system is here for now:

• K-7 or K|s2
• Σ18-50 + 50-200wr DA|L
• DA21 Ltd
• 85 and 135 smc-M
• bonus items: Σ100-300 slowpoke AF, Rikenon 70-150/4 MF

No doubt more will accrue at some point. For now this is it.

After some contemplation, I expect that I'll allow the K|s2 to arrive and give it a shot to win me over. I still really like what it offers, and if I sell the K-7 and smc-A 28+50 it's nearly a draw.