Metolius big wall bucket is decent (the smaller one), I mostly use it for pulling up gear on taller vertical stuff when going top down. It's also nice for when its lightly raining, works like a mini dryish bag, probably one of the reasons my drill is lasting longer than ppy lover's!
My buddy Braden has some of the small and large kit bags. They are super helpful for holding smaller hardware when bolting or rebolting!
Lately I have just been developing on the weekends on stuff less than 80ft w/ shorter approaches, so I've just been carrying everything in my backpack/harness, more bins/buckets can just add inefficiency. Though having a stash bucket is nice on longer approaches and a lil bolt bag/bin is nice on the taller stuff!
I'll vouch for https://www.mtntools.com/cat/rescue/mt_boltkits.htm I hope the og poster in this thread is gunna sink some stainless hardeware into one of the MANY cool sandstone cliffs around bham. I have been making 3/8th inch 316 stainless U bolts (glued in with Ac100 or Hilti). Those U bolts are used by the Australians on their sea cliffs. I would be happy to make and sell some. They would be ideal bolts for Erie: long lasting and absolutely bomber in that soft rock.