I almost forgot to say, everything is sculpted (for the drums 3d sculpted and printed) by me!
Man, you're very talented, and I'm sure a lot of LAF'ers will want to BUY some of those drums, chairs and bottles from you (I know I do).
Good for you to have access to all the techniques and machinery to do this.
As for painting, "just do it".
If all goes wrong with your colour choices, washes or drybrushing, you can give all the model a HEAVY wash of brown/orange, call it "rust" and say it was your intention from the beginning
Thanks for sharing.