That's a good start
Will you be building for customers professionally, or just your own wheels? Your listed equipment isn't cheap, and there's plenty of opportunity to save money if it's not going to be a major offering from you. OTOH, if you're offering professional builds, a gauge tensiometer like wheel fanatyk's can help you dial in absolute tension. A dish stick is good for getting dish dialed in to under a millimeter quickly, but not necessary with a stand that also centers. You'll need to decide about the micrometer. Spoke lengths can tolerate some variation, but performing your own quality control on spoke gauge can help you even tension out easily, and build wheels that stay true longer.
IMO the aids all exist to make the job easier and therefore faster. If time is money, saving time is worth a few extra bucks.
Last edited by Unca_Sam; 07-31-19 at 09:17 AM.