Sweet. I gotta get into doing something. Never 'did' tires, but I've worn out enough of them that I have a better than basic understanding of what it takes (and it isn't rocket science, just don't jack up someone's nice rims).
Brakes are CAKE for me, been doing them since the early 90's....
Batteries....ha....done everything from 24V aircraft batteries to 12V fire alarm panel batteries.
Lube/oil.....is a frog's rear end water tight ?
I used to work at U-Haul and we'd do PM's on 3 trucks a day, plus any special repairs....belts/hoses/fluids/filters/brakes/body bolts (in the box bodies)/roll up door hardware/plugs/wires/diesels, etc. My hands have been all over. Even worked on 17T chassis crash trucks (supervised).
Anyways...how long does it take to hear something back ??