The 4" squares might be too small unless there are some dups in the package. If there are..then they would work too. There are some blocks that take very little to make...you'll see. Oh...and I thought that maybe you could contact the seller and see if they could cut into FQ's for you....they might.....
But, there did look like there were some good ones in there..I think there were about 4 pages this morning when I searched for "Orange Fat Quarter bundles".