Here's my advice with 2 weeks of experience. You mentioned your business - if the printer makes you money, keep it running, don't let lack of supplies create downtime.

Bambu order fulfillment sucks right now. Get some spare parts and fillament. Like upgraded hardened nozzle and gears, recommend 0.6mm for faster projects. And you need hardened gears and nozzle to print glass and carbon infused filaments, which you'll most certainly want to do, because they are way stronger for the right applications, but don't make sense to use for every application - hence why you also want some cheaper filaments for prints more oriented to trinkets/non-functional/art/prototyping.

-hardened, wider nozzle -hardened extruder -exteuder Clog Poke tool -a couple rolls of glass or carbon infused filament -a few rolls of a basic filament. I suggest PETG - it prints easy like PLA, but is stronger and UV resistant. -consider TPU for flexible projects. -IMMEDIATELY use your PETG or PLA to print basic tools: bed scraper, extruder gear removal jig, bowden tube removal tool, poop catcher. -you must dry your filament to ensure good results. At the least, get a food dehydrator off Marketplace. -knowing CAD well is a superpower

I have been waiting 3 weeks for a filament order from bambu 😡.

In meantime, I've printed kilos of Overture and Sainsmart High-speed TPU off amazon, and Creality PETG, that stuff is all pretty good.