I found someone selling the last 3 notes I needed for the 4th dollar series. One of the notes was a hair lower on grade than I've been wanting to stick to for this set but I decided to go for it, get the three notes as a group, so I could have the set complete. I'll worry about upgrading things later, if I feel like it at the time.
I'm now about 92% complete for the hyper inflation set (2nd, 3rd and 4th dollars) and 75% complete for the 1st dollar banknotes. The 1st dollar check series are a bit more difficult to deal with but overall the collection has come together quite well and these sets enjoy the #1 rank in the 2nd dollar bearer checks (P-33 to P-60), the 2nd dollar agrochecks (P-61 to P-64), the 3rd dollars (P-65 to P-91), and the 4th dollars (P-92 to P-98).
I need to get pictures taken of the recent additions to the first and 4th dollars but I'm feeling super proud of how this has come together. I have 71 of the 100 pick #s in my overall collection (including P-13 through P-31, which are not easy to get and may be nearly impossible to get graded). I have more than one variety of the P-1, P-4, and P-48 and several replacement notes. :)