Marty,

I have around 7 playfields swaps to do in the distant future, and I will be buying a roll or two of the ground braid from here ;

http://www.pinrestore.com/Supplies.html

(about 1/3 of the way down)

I think sourcing a local air stapler is the go, but here;s what they have ;

http://www.pinrestore.com/Tools.html#AirStapler

I will be using a hand stapler that we used to use to recloth Billiard Tables. It is an industrial type hand stapler.