you are more than welcome to go over the tactic and get an idea etc and use certain things for your own one if you like your Brazil tactic looks good and it seems you know what you are doing!
You'll at least need very good attacking FB's/WB's, since their pretty much the only source for width then. Those tactics are too easy to stifle without them. (Eg. See Milan - Tottenham in the UCL past season.)