NO' don't buy resin or cloth from places like Home Depot.Even if they have it,it would be overpriced and a poor quality.
I've been using Merton fiberglass for years,on lots of my boats.
He sells to several guys on this site.He carries everything you need, cloths,polyester and epoxy resins,fastners,paint,fillers,etc etc.He ships everywhere.
His website is
www.mertons.com
I'm sure other guys can also reccomend some suppliers.Good luck with the project,i'm doing the same.