If you want a bunch of tokens, and the adventure that's included with the Monster Vault, then I would get it. If you just want the manual itself, then I'd suggest checking out second-hand bookstores; I've seen copies of just the manual there.
To save every power and magic item would be labor-intensive, but what you might do, is create a "houseruled" character for each class, and give him every power for that class, then save the character as a PDF. The Power Cards would be at the end of the character sheet, and you could print-copy-cut-paste the particular powers that you want. You could add magic items onto him, too, or create a separate character that only has the magic items. If you print from the online Compendium, then you'll get all the information, but it wouldn't be in the "Power Card" format.
This is how I did it until I went back to the offline version.