I dunno if it would be possible to convince people of Big Foot if they don't believe in it. Pictures? Movies? That's been done before. kill one and produce a body? Someone will claim it a fraud, the use of special effects, photo-shop, and the like. Catch one alive? Once again decrying of fraud- It's a guy in a suit, it's just a single low land gorilla with a genetic mutation, etc.
Likewise, if someone is hell-bent on believing, there will never be enough evidence produced to the contrary to prove other wise.
I figger Big Foot is like all the other Ghotse, Ghoulies, Demons, Vampires, Werewolves, and Sasquatches out there. People that believe see stuff like that lurking around every corner. People that don't believe won't be convinced if Big Foot walked up and urinated down their leg.
There have been some interesting findings in recent years to support further investigation, hair and blood samples that couldn't be identified, etc.
On my own personal budget of Poor, White, Oilfield Trash? I'd try to snare 'em There aint nuthin' on Gods Green Earth that walks, crawls, flies or slithers that can't be caught in a good snare.
Maybe an M-15 Bucket Trap, about ten foot in the trees? Bait it with KFC, donuts, bacon grease, etc.
http://www.wildlifecontrolsupplies.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=NWS001&Product_Code=WHM15&Category_Code=foot_snaresI do believe I would shoot if I saw one. I aint never eaten a Sasquatch or a Yeti before. Might be good eatin'? With them things running all over the US from Alaska to Florida, the Andes, Rainforests, etc. It don't seem that it would create a shortage? Nah...That would be one other thing for the Gummint to get thier hands into and mess up. Current Administration would start trying to collect taxes from 'em, they'd think it was all my fault.....
To ponder this is a great exercise in mental masturbation though. I dunno if there's such a critter or not, but I seriously doubt it'll make a bit of difference to me in my average life of doing average things.