Agree with Dave. I have the 56 baseball subset done, but am 2 short on the 55s. The 55 baseball checklist was incomplete until just a few years back.
Value is hard to predict. Because it is not well known, very scarce and ugly to boot I would guess they are not widely collected as a set, but maybe high on the list of some player collectors. I have been contacted several times about my 55 and 56 Ted Williams. I do think that among graded player or set collectors higher graded cards would bring higher prices. Mine are all ungraded and I would say hand cut from strips that came in the packs. This one is from 56.
Welcome to the Board Matt. You started out with a bang