The R-1 is a bipolar speaker, which means two tweets firing off at 90 degree angles for a diffuse sound.
The other speakers in the series are the more traditional "monopolar" units in which the one tweeter in the front fires into whatever direction it's faces.
But, unlike many other speakers, these have quite wide dispersion. Not that much "beaming" as one would expect.
Do you absotively posilutely HAVE to purchase everything at one time? If not, here's my sugestion.
Start with the F2's (or the F1's, whichever), the C1 center and a pait of the B2's for the main surrounds. That's the basis of a 5.1 (less the .1) system. Set all speakers to "large" and see what happens. ...probably be more than a little impressed, I'd say, particularly if you have taken care to place the front mains properly. Remember, the bookshelves are rear ported so leave a few inches behind 'em so they breathe properly
For the two rear wall surrounds, perhaps a pair of the B1's will suffice but I'd set these to "small". just in case.
You will have a set of mains that need not hang their head in shame to many speakers that cost a LOT more than you paid. They are highly efficient, can absorb gobs of power and, unless you are bordering on deafness, insanity or both, will play very, very loud (and cleanly) with a relatively few number of watts.
See how this plays out for a few days/weeks. Now, you will have an idea of just how much bass you will need your sub to contribute to.
FWIW, I use a pair of F1's, a pair of B2's and a C1 with a velo 1210 (for almost three years now and still love 'em) in a 10x16 room and it is overwhelming. I don't even use the sub for music. Tain't needed. Now, you're gonna have twice the number (and radiating area) of woofers...
Well, to paraphrase that guy in Jaws, I think you're gonna need a bigger sub to realize it's contribution to the little low end range your F2's will need coverage in, generally below 45-50 hz or so.
n a room that size, up your budget and start thinking SVS or Hsu...