Here are a few potential discrepancies I found in the Crackatwoa build instructions:
-- p. 33, last step - I believe this should read "around the outboard bars"
-- p. 40, first step - 1-1/2" was too short in my case. Adding 1/4" to 1/2" worked for me.
-- p. 56, step 2 - I believe this should read D socket.
-- p. 60, first step - I believe this should read "Insert and solder ....
-- pp. 36 and 37 -- Instructions call for 33k-ohm, 1/8-watt resistors; the parts list specifies 33k-ohm, 1/4-watt resistors
Joe.