Sako mounts of any make are pricey and I'll bet they are scarce where Jose is. I'd do what I could to save the mounts.

There is a cyanoacrylate "debonder" that I've been told is really just high percentage nitromethane. It is as thin as water and does penetrate well. I don't know if it works on epoxy.

http://www.supergluecorp.com/zap/zap-z-7-debonder