>>1331974kek.
Well as for the chisels, I did them by hand on old oil stones. Chisels are easy to free hand, just set the fact flat on the stone and keep your wrists locked, move up the grits, and do one final high grit pass flat on the flat side to break the burr. Some chisels have a secondary bevel, but it's the same concept, just a bit more practice to hold the angle. There are a few set angle systems with chisel adapters, I could get one for my Wicked Edge, but unless I had A LOT of chisels to do and often, I don't see the point.
The large stone in the center of that pic is my grandfathers Norton Tri-stone. However now-a-days I would use my 4"x8" DMT diamond plates, expensive, but good diamond plates last almost forever. If I had a bunch to do, I would probably cut out a block of wood as an angle guide (training wheels really) to lower the level of concentration needed.
If the chisels needed a lot of material removed, I may take off the majority of it with my belt grinder with a back plate on.
I'm around Philadelphia. But really I'm not doing much customer sharpening at the moment. Currently moving a few miles, then going on vacation for 2 weeks, and then I'll be pretty busy with work and school until late Fall.