Yeah no guarantee you can find the rest of the speakers at a decent price, they have been discontinued for quite some time now. Those RTi speakers are a good choice, but there are many others to consider as well. Ascend, HTD, HSU, EMP, and Arx are some of the big internet direct contenders in this price range, and generally they offer more bang for the buck than B&M brands.
Samsung PN60F5300 | Denon DBP-1611 | Roku 3
Denon AVR-1713 | EMP E55Ti | EMP E56Ci | EMP E5Bi | BIC F-12
Topping TP23 | NHT SuperZero 2.0 | Velodyne DEQ-8R