MOBRIDGE, S.D. -

The owner of a South Dakota auction dubbed the “classic car graveyard” is currently selling his 40-plus-year-old collection of over 300 collector vehicles from the 1920s to 1990s.

Kerry Droog, owner of K&K Auto and the son of an auctioneer, has been buying from auctions and picking out finds from local farms for most of his life.

“It's the type of auction that keeps classic car enthusiasts up at night,” K-BID.com, the online auction venue hosting the sale, said in a news release. “Many buyers from throughout the United States are expected to participate in this once-in-a-lifetime auction.”

Droog has made the difficult decision to sell much of his unique collection after 40 years because he can’t fix them all, according to K-BID.

“I'm not going to lie; it's going to be difficult to see some of these vehicles go down the road,” Droog said. “I finally got to a point where I realized that I could not fix them all. It's time to pass the torch and let someone else pick up the dream of fixing them up.”

Though his collection is shrinking, Droog said for future projects he is holding on to some of his favorites such as a few trucks from his assortment of 1968 Chevy pickups.

The auction is currently live on K-BID.com and open for online bidding until June 24.