I installed kraft paper faced R13 rolls..........about 23 rolls (32' each) did the job along with a few hundred staples
I needed 16 panels, which are 39" wide which I overlapped one rib for a tigh no seam look
I bought 10' long sheets and had the metal shop cut them to 102" (the height of the walls) so there were not any horizontal seams
I kept the 18" drop sections for another project
The self taping corrugated sheet metal screws went in great, no predrilling needed
I did not need and furring strips, with 16" OC studs, the 24gauge metal panels are more than strong enough, no flexing
The shop is MUCH more bright now just with finishing the walls off
This wall is about 45 feet long