Couple minor rebuttals:
* The sharpener I recommended takes seconds to use and can't really be messed up. Cook's Illustrated says it works as well as an electric one that is much more difficult and more time consuming. I can sharpen my knife with it in less time than you can even safely package yours to take to get sharpened, and the Fibrox needs to be sharpened somewhat often. Seriously, buy that sharpener and try it. I'll give you the $9 back if you don't like.
* I don't think a 10 piece set costs more than the individual pieces you described typically. They count lids at pieces, so it's really more like a 6 piece set. I frequently need multiple saucepans or skillets when cooking so I really don't think it's overkill. (I'd recommend one saute and one skillet at minimum). You need a small saucepan and a large. I would agree that the first thing I'd spend extra on would be All-Clad pans. Most restaurants, even good ones, use cheapo aluminum pans though, so I don't think I'd call it minimum viable. (I probably should have recommended cheap aluminum pans from a restaurant supply store honestly.)
* I'd pick the blender over the stand mixer any day, and I almost never make beverages with it. It makes awesome soups. Aerates a quiche. Makes homemade mayo. Purees fruit for sorbets or granitas so well you don't even have to strain out the seed chunks. I don't think I'd do any of those with an immersion blender.