Does anybody know about 4 vs 5 headliner bow sets?

[71cudajoe]

I need a set of 5 headliner bows for my 71 Cuda. I have two of the 4-bow sets. I'm wondering if anyone knows whether or not I can simply take one of the bows from one set and add it to the other to get a workable 5-bow set for my 71 cuda.