At one time I started a list of basic tools one would need for building saddles. I do not know if it is still around on the site or not. If it is not around I will try to start another list.
I would contact J Watt at Ranch2Arena.com for some hammers, edgers, ect. Bob Douglas for a stitching awl, he also has a great selection of old tools. Ron's tools also carries a great selection of edgers. I have found that ebay is a great place to find old tools, but I would recommend you know what you are looking for, because sometime they go for more used than new.
Ash