Thank you for making a very neat SMT soldering kit and making it open source. I was looking for something to test a new reflow oven with while waiting for parts to arrive for a different project and this kit did just the trick. I was able to find the KiCad files on GitHub and use them to have a kapton stencil created by OSHStencils. At first I did not think it would work, as the pad cutouts in the stencil were big, as expected, meant for hand-soldering and I squeegeed on what I thought would be too much paste. Lo-and-behold though, everything worked!
I have uploaded a few photos of the process here: https://imgur.com/a/2x9Kw62.