I used hardware cloth for the entire run (4'x8' probably smaller than yours) save the top and bottom. For the top and bottom I used 2x4 welded wire fencing... much cheaper.Oh I know...it's a pain in my butt.I'm dreading all the cutting we are about to do....it took me forever to cut the pieces for just the 6 small windows in the coop...and now we're looking at enclosing a 12x12 covered run....with individual frames. ugh. I didn't know if anyone had tried a circular saw with a specific blade, or a jig saw (although I think that would be hard to navigate through the wire without it jumping all over the place. We're using a neumatic staple gun...which will secure them tightly, and then covering that with another board on top.
Possessed by the devil is right!
I used tin snips w/o too much headache. I found 48" hardware cloth on ACE's web site that was pretty reasonable ($92 for 48"x50/ free delivery to store). all my 2x4's are spaced 48" also so I had very little cutting to do... just the "ends" and the door.
Mo