No offense but you're gradually gonna have to develop some tradesman/artisan 'cred' (such as COTS has been cultivating over the years) in order to have a "go" at this. Sure, garage sale and flea market items can/will get you $5 desirable-stamped axe heads (lots of searching time involved though) but the folks that potentially want $200 resurrected tools are a lot more fussy than you think. In fact many of them (within the collector and purist crowd especially) will turn their nose up at a thoroughly labour-intensive 'shined up' Black Raven that has decorative Rosewood double cross-wedges on a AAA hand-carved handle, and go instead with a lonely untouched rusty head, and, willingly fork over $100 more just for that privilege.