Hey, MY 1987 road bike has BioPace rings, too! (Post soon, pending retrieval of photos!) I also have that same 105 group.
I've only done a few miles on this bike so far, but I'm pretty happy with the rings. They feel fine to me. Why bother swapping them out? But if you must, here's the deal: don't worry about it. Just match up the BCD, and you're good to go. For 105, it should be 130mm, but it might be 110. I don't know what BCD sizes BioPace came in. So make sure you know what it is. Other than that, don't worry about it. You can use whatever brand of chainring you want. The only possible issue is that 10-speed chain may wedge itself in-between the two rings, but I don't think that this is terribly likely. I'm using old cranks and chainrings from the 6-speed era with 8-speed equipment, with not even a hint of trouble. Obviously, not the same as 9 or 10-speed on the same rings, but from what I hear, problems are pretty few and far between.