Westcott Light Stand (Black, 8')

The diameter of the center column is about 7/8" (22mm) and that of the legs is about 5/8" (16mm).

26.2. The box is 27

I use these light stands on location with speed lights and a 26 Rapidbox, and they are perfect for smaller lights, but they might not be heavy duty enough for your needs. I would choose one B&H Photo's more heavy duty stands.

This stand has a rated capacity of 5 lb. The xplor600, with battery, weighs 5.9 lb. Personally, I would use a heavy duty light stand for the xplor600 (and still use sandbags). Like this one: https://www.bhphotovideo.com/c/product/1274797-REG/impact_ls_96habi_9_5_heavy_duty_air.html

Absolutely but you would need a shoe mount bracket with a cold shoe to mount a hot shoe speed light to the stand.

The Ice Light will attach to the 1/4 -20 mounting on the top of the stand. To add tilting options I would suggest an adjustable shoe mount or tilter bracket.

Yes, but it is capped with an adapter that allows easy attachment of Tota Lights

I love these, they're super light and compact. The'll work with the 26 Westcott Rapid Box with a speed light, but with that load it's certain to move about in the wind. You'll also need a sand bag to bring more weight to the base. I would still consider owning a second heavier stand for windy conditions or when an assistant is required to hold the stand not perpendicular to the ground and fully extended.