Is it possible to get BOTH Salamander and Grimoire of Eld in Romancing SaGa 2: Revenge of the Seven(even with cheats/mods)?

In normal gameplay, it seems impossible to get both the Salamander class and the Grimoire of Eld (Diviner/Dark Magic) in the same playthrough due to the volcano event being a hard story branch

Has anyone managed to get both in one save using cheats, mods, or save editing (PC)? If so, what method worked, and was it stable?