I was painting up some Warhammer 40k models and was just using the lid of a tupper ware as a makeshift wet palette. It wasn't the greatest, so I designed my own. The larger reservoir is made for either a paper towel folded over a few times (I do 2-3 times) or a sponge cut in half. I originally tried using a sponge, but the wax paper that would sit on top didn't stay very wet. The smaller reservoir is just a brush rinse with some bumps on the bottom (as well as a smaller smooth area) to help remove any paint.

There is also a few notches for holding brushes that aren't in use or you just need to set them down for a minute. No more brushes rolling away.

On these settings (and 70mm/sec speed for everything) Cura says it'll take about 3 hours to print.