That really is a great looking coke, congrats!
I'm not sure if such an arrangement is possible, but you're probably younger and more energetic than the digger with 10,000 bottles he needs to sell so maybe you could come to an agreement to buy lower value bottles at good prices to resell on eBay and flea markets, or help list and ship bottles for a commission/fee. I'm sure he would have enough motivation to sell 3 or 4 figure bottles himself but he probably doesn't want to mess with thousands of 10.00-50.00 bottles so there may be an opportunity for you to make some cash and get more for the collection.
I've set up at bottle shows a few times but the best I've ever done was at the general monthly flea market selling cheap stuff most serious collectors have no interest in. 4-500 dollar days selling nothing over 5 bucks each. I thought they'd like the sodas more but for me the flea marketers love the common but appealing BIM patent medicines, bromos and older mason jars (with zinc lids so they can store/display stuff inside). Great way to clear out space and the clientele seemed to be very supportive of and impressed by younger dealers willing to wheel 'n deal and sell at good prices. That digger probably doesn't want to mess with dozens of Kilmers Swamp Roots, Dr Pierce's, Dr King's, etc. but a bright-eyed energetic young face can make great money selling them off if you're willing and have transportation.
