You could also set it up to where there's a steel yellow belt recipe for the early belts as well as a tin version for a cheaper option later. Not sure how much you'd like to have alternative recipes for belts, but it's just a thought. Multiple ways of doing things are always nice.

I know the MK2 crusher speed being equal to MK3 was already mentioned, but it appears the same issue is present on the MK2 ore refinery (has 1.5 like the MK3, where a speed of 1 is likely desired to match other MK2 machine speeds). Wasn't sure if this one was mentioned as well, but thought I'd point ...

The 2 iron ore to 5 plates is likely marathon (copper would be 1 ore to 5 plates, which would also be off). I adjusted all of my recipes to match marathon's amounts (basically just where iron/copper ore to plates occur) since I didn't want to remove it or have the ratios off. Kinda too used to ...