Cluster is against the front wall with a gap of empty comb between them and the honey — do I move a frame?

Minnesota, first year. Following the advice on here I cracked the lid on a mild afternoon to check my fondant plan and got a proper look down between the frames. Both colonies are clustered, which is reassuring. What I don't like is where. In hive two the cluster is pushed right up against the front wall in the top deep, on frames one to four. Frames five and six are empty drawn comb — I think that's where the last brood was — and the capped stores don't start until frame seven and run to the back. So there's about two frames' width of empty comb between the bees and the food. Everything I've read about winter losses here says the cluster moves up and sideways slowly and can't cross a cold gap. Two frames doesn't sound like much, but at -20°C I assume it might as well be a mile. Do I go in on the next warm day and rearrange — slide the store frames next to the cluster and move the empties to the outside? Or is moving frames around in a clustered colony in mid-October more dangerous than the gap? It's meant to reach 14°C on Saturday, which might be my last chance.