So I did not think about the fact that installing a mod that expands the research tree for mods that provide additional parts would also lock those parts lol. I still get an error about metal textures but aside from that, all parts that I wanted are currently locked behind science, which is what I was aiming for. So for now, the problem I was hoping to solve has been resolved. I dont know if the errors I am getting now are due to Stockalike Station Parts but they work so I am not worried. I have screenshots of the errors that I am getting when I boot the game if anyone is interested though. (They're due to duplicated subtype names due to B9PartSwitch, but my game works so I am happy)