Jim,
...looks good (enough) to me .-)
Actually what you describe is "777" the one you used "775" means:
read by owner & write by owner, execute-search by owner,
read by group & write by group, execute-search by group
read by others,-------,execute-search by others
NOTE: If you are not comfortable with stuff like that use it inside Midnight Commander (just type "mc") and you will find in detail (also there are extended attributes which mc sets for you nicely).
Just click the filename, FILE, chmod ... voila
BTW: Don't forget about the owner attributes !!!