Welcome!
Review the current assembly instructions:
If you don’t have PPE (hearing/eye protection) which you like, start buying and trying out good quality options until you find a set which you like and are willing to wear for long periods of time
If you don’t have a good quality shop vac/dust collector/extractor which you are willing to listen to for long periods of time, get a DeWalt Stealthsonic w/ at least a 2.5" input (a straight 2.5" hose will be much quieter than a tapered one)
A ratcheting tool or powered screwdriver will make assembly a bit less tedious (so long as the torque of said tool is such that it will not damage the soft aluminum and one is careful to start all threads squarely).
If you don’t have a decent set of calipers, consider getting some.
If you don’t have a good quality square to check squareness that may help.
If you don’t have a typical shop setup, tools for post-processing cut materials — a small razor saw, or saw blade for a utility knife is useful for cutting tabs, a deburring tool is excellent for metals and plastics, files may help make some edges look nicer, I use a chamfering plane on some edges, some folks use chisels and/or gouges to cut tabs and consider various tools for processing stock for cutting — just a hand saw (for breaking down stock), and a drill (for placing holes for workholding) will make things far more affordable.
Above all, remember that you can contact support@carbide3d.com if anything comes up, and don’t be afraid to try things, since we have a special warranty for just starting out.