As someone who finds hand planing a challenge the minimalist approach seems like the best way to truly learn a tools quirks and develop the skill required. So the Veritas BU planes are going along with the Tormek required to sharpen those gargantuan irons and a diamond plate and oil stone are on the way to get my old Stanley no 5 humming. I never found a sharpening routine that didn’t look a ball ache to keep the BU planes working well and being a stick thin wimp the weight of the buggers for anything more than controlled smoothing shavings knackered me out.
The last tool I recommend for every beginning woodworker is a quality router. While many routers available today offer two different bases (a stationary base and a plunge router base), for most beginners, a quality stationary base model will take care of quite a number of tasks, and can also be mounted in a router table should you choose to invest in (or even build one) one down the line. Choose a router model that is at least 2-HP and has electronic variable speed controls (as larger cutting bits should use slower speeds), a soft start mechanism and is easy to make bit changes (preferably with the ability to use both 1/2-inch and 1/4-inch shank router bits).
Wooden mallets are mostly used for hitting your chisels when cutting joints (like dovetail joints or chopping mortises). You should never hit a chisel with a metal hammer. Build or buy a mallet that is made of fairly hard wood (e.g. maple, oak, beech wood, etc.), that will feel well balanced in your hand, and that gives you enough weight to chop with your chisels.