I usually use the Generic Tap Plastic Acrylic cement because it's cheaper for the same product. I believe it is equivalent to IPS #3 or #4 but I forget. I have never used #2354. If it was me, I would buy one of each and test for suitability.
My recommendation -- go with the cheaper Tap Plastic Acrylic cement and a syringe kit. It will weld 85% of all boombox front/back cabinets. If done skillfully, an experienced guy can make an almost invisible repair that is about as strong as original pre-break. When repairing inside screw towers, I also add hot melt glue around the break just in case to give additional strength.
Nothing will bond nylon (switch shaft material) except plastic superglue with adhesion promotor. Even then, durability is questionable.