I would recommend this template for a good 3day/week version of 5/3/1:
There is definitely enough information out there that you don’t NEED to buy the book to get a lot out of it. I personally used 5/3/1 for the better part of a year (using freely acquired information) and then bought a couple of his books to support him since his programs did so much for my training.
If you are thinking of starting 5/3/1 I’d start reading some of Jim’s stuff and really buy into his type of training philosophy. It’s a no fluff, no BS, hard work and steady progression model. I love it and it fits my training personality. His original program is here, along with a bunch of tips and rules too: