Have you considered releasing some recordings from these labels. Contemporary recordings especially seem to be outstanding from the late 50s/early 60s. Some of the Columbia, Riverside and Contemporary two track factory pre-recorded tapes from this area are outstanding and can compete favourably with the best of the LP issues(Kind of Blue, Art Pepper meets the Rhythm Section, etc.). I'm sure you can better the already great two tracks with your equipment and care in execution.
Rich Brown
Acoustic Arts