I would (and did) go with the $249 omni/card/9100 CA package, and you could still get an H120 for ~$400 total. Save up some more cash, get the R09 and sell the h120, and that puts you ~$550 total, but you can do it in steps.
Or, since you already have a battery box, you could get the R09 and a new set of mics now (ca, 853, ect) and worry about a pre later.