If she doesn't have clearance to do a giant, then I'm guessing pretty much any circling skill through HS is out. If I were the coach in that situation, I would probably only shelve giants as a last resort if the athlete was physically ready and we had basically any bars to train something on. First I would call around to any gym without a reasonable radius and try to set up a time we could visit once in awhile (say week before meet). Train giants on low bar (bent leg or on single rail just high enough to swing through but not high bar height) in preparation, so if we can arrange another facility visit she could try them on the real bar and then in a routine. Not ideal by a stretch, but possible if she has the physical ability.
If that is impossible, then low bar giants are allowed in competition without deduction (legs need to straighten when coming through vertical at the top). Again, if she has the physical ability, I would train low bar giant. Probably kip cast 1/2 turn, swing out to giant (or kip cast HS before, but I would prefer to leave out unnecessary skills), kip out of giant or step down to sole circle. High bar, uprise to clear hip, horizontal support, good stretch straight through to dismount (should be possible with good stretch and tap through the bottom). I don't know if that's enough Bs offhand and I'm too lazy to count, but that would be my basic model and I'd throw in another as necessary. Another option is adding a straddle back or shootover release as another B. Neither should require coming through vertical on the high bar.