I love the rifle on the box! A necessary piece of equipment for the ******* comeback customer!!
I'm all about restoration, not collision repair, so my stuff is hammers, dollies, files, various dolly-punches, anvils, Puller-pusher ram set, many grinders and cut-offs, sanders, blocks, welding equipment, air drills, air hammers, air saws and of course, all the basic hand-tools for dismantling and rebuilding.
Some of your decisions will depend on what the shop supplies, but hand-tools are a safe bet, as well as basic air tools.
I worked my way up in my Dad's shop as a prep-man, took a 1 year ASE Course, then got my painters ticket. Worked for a year after that as a painter, then went back to University. 5 years later my first "office job" was GM of a large Volvo Dealers Collision Shop. Managed 20 men in a shop with 2 booths, 2 floors, a full-time mechanic and a drive-in service area. The guys who I admired where the "old-school" guys who treated it as a real profession: Nice tools, clean bays, good at re-estimating and good at what they did.
Good luck and think of yourself as a doctor of collision repair, not a coal-miner!