As long as the IBU are low, you should be fine. Hops and sour bugs don't mix well.
With the dregs of two bottles, you are probably lucky if you get two gallons of workable beer. Find yourself a couple 1 gallon jugs and transfer the beer to those. Leave about 1/2" at the bottom of your RR bottles, then swirl them to resuspend the yeast. Hit the mouth of the bottle with a lighter for a few seconds to sanitize, then pitch the dregs of one bottle into each of the gallon jugs.
Depending on your FG, you may not get much sourness. You can fix this by adding an ounce or two of maltodextrin. Also be prepared to ride this out a long time. I have a gallon of a brown ale with Kriek dregs that's about 10 months old. It's had a pellicle for a while, but is finally starting to come around to being sour. I probably won't bottle it until around Christmastime.
