Ok so I was gonna post a pic of my workbench but can't, guessing I've gotta have it hosted or something?
With $2000 you could buy the timber AND tools needed to cusom build whatever storage you want!
I built a bloody solid work bench from 100mm rough cut timber, hardwood and yellowtongue, It's about 2.5m long, 750mm deep and has a shelf underneath. Materials cost me about $250 and took about 4 hours to do with a mate on a Sunday. Plus a slab of beer...
Shelves, I just got the most heavy duty ones from Bunnings and they're pretty sturdy, rated at 500kg. So not sure what you need them for but they're more than enough for my purposes!