Any soap or cream can be used brushless, whether it says so on the package or not.
There isn't anything in my rotation that I haven't lathered up with just my fingers and the palm of my hand ... and neither my whiskers nor my razor can tell the difference.
As for Cremo Cream, you can probably get it from Amazon or one of the vendors here on B&B ... just be prepared to pay through the nose for shipping. That would be the deal-breaker for me, unless you order a lot of other stuff with it to get free shipping. Its a good cream, but its not that good to warrant $15 worth of postage.
I Came. I Shaved. I Conquered.