Photocopies of those two McGurk pamphlets and a Dec. '54 Car Craft article are being sold by someone on Ebay regularly. $16 I think.
The Fisher and Huntington books that are still being printed are mostly useless for the later sixes. They are good to read, but be carefull what you use. You can't mill the later heads as much as you can the earlier ones, for example.
