Looks great thus far, and I have confidence it'll fit into the A1 mini as I've used the A1 version before. Edits: Got everything assembled. I did break a couple tabs on the main body, but that was due to trying to combine a drag chain mod with this one as they mount in the same place. Other than being a bit loose it works great!

Great print! Was happy to see that it also fits the Canadian Tire branded Mastercraft mini tool chests. There's some horizontal wiggle in the bottom drawers (~9mm) and the top drawer has some play vertically (<2mm), but this is likely due to being a different brand. No complaints from me.