I use either Bergeon metal oilers or Jisma oilers depending on what I'm doing but the red or black set with cup for $23.70 found
here would be a good place to start. For tweezers, look at product
FB-1403 here, they would be the minimum I'd go with for precision work. I'd also keep a #5 on hand too, and a pair of these for the dirty work to keep your good pairs from being damaged. Brass tweezers are far gentler if you feel the need.
For the CG, a small file set for the corners (jewelers files work well), micromesh sandpaper, and 600 grit to brush finish, along with a buff stick to back the paper...