I'm going to be AirBNB hopping for the next 4-6 months so I've justified a lot of GAS on those grounds:
Wandrd Prvke 31 backpack (goofy name, great bag)
Sirui ET-1204 carbon fiber tripod and E-10 ball head (replacing a too large, too heavy 10+-year-old aluminum Benro and a thoroughly mediocre Giottos head)
Kirk arca-compatible L bracket for K-1
Used Sigma APO DG 70-300, because I don't like lugging the Tamron 70-200 around. I like it well enough so far, seems to be noticeably better optically than the Tamron 70-300, especially on the long end, and a fair bit better mechanically too (nicer finish, no hitch in the zoom action at 180-200).
Used 43 ltd at an ebay auction price that was too good to pass up.
The 70-300 and 43 will join my FA 20-35 (or maybe Tamron 17-35, if I can squeeze it in), 77 ltd, and GR in the travel kit.
Originally posted by northcoastgreg an L plate for K-1 might be nice as well.
Can recommend the Kirk bracket for K-1 - the ony Arca plate I was able to find that's specifically designed for it. It doesn't block access to anything. Even has a cutout to let you get your finger under the LCD to flip it up.