Another bike I will be watching is this Crocker;
https://www.bonhams.com/auctions/25835/lot/180/While Crockers are cool and rare bikes, my interest in this one is because I am an acquaintance of the owner. I worked with and rode Nortons with a couple of guys who went to high school with him. I went to his home many years ago, he had this Crocker in boxes at the time, he also has a bunch of Indians he collected over the years. The sale of this bike should fund a bunch of his projects, 50s cars, Indians, etc.
This bike was at Barber last year, it was in the auction. Bidding stalled at just over $400K, it failed to meet reserve.