Split Gridfinity Box

I wanted a bin wider than my printer surface. The uploaded models are for a 7x2 bin. This is based on Zack Freedman's Gridfinity model. I cut in a small lip to keep small stuff from falling through and 2 alignment balls to align the faces. It could be better. But my scissors fit.
Source files are here (they are based on Zach's original source files): https://a360.co/3TyzbSS

With the way I sliced the original bin, the parameters no longer function reliably.