I have a large collection of advertising tins that I want to sell or auction and need to know a source of contacts

I used to collect advertising tins that were old and colorful. I expanded that to many of the newer tins from the 1980s and 90s while continuing to buy the older tins as I traveled across America. Now I am retired and have changed my objective of setting up a Tin Museum because I have elderly family members to take care of. I now have about 3000 tins that range in catagories of medicine, tobacco, food and candy, whisky, gas and oils, key wind and pail coffees and miscelleanous. I have over $150,000.00 invested in the price of these and would like to get a fraction of it back if possible while still finding someone who might cherish them. If I can't sell them as a unit then maybe someone can sell them for me and pocket some good profit while the new owners get to enjoy a bit of history.