Wow, I personally would be tickled to death to have a set of Signias. I am sure money is of consideration here, but if they were mine I would find a way to keep them and buy the other set.
I still have every set of drums I have ever owned, each of them with memories. I do hold a sentimental value to my kits, but in your case there is also the fact that Signias are of value to those who know what they are. If it was a set of
Pearl Exports or something as common I would say go for it.
....food for thought.