Honestly?
First thing I'd try with an item bag was to see if I can draw out my lost shit; it might not work, but I'd still try...
I'd li e to be transferred into my game, but without my inventory...? Eeeehhhh...
Hell, my fantasia alone would be worth more than almost anything... not to mention the random elixirs, mega-potions, and other useful foods and such...
No inventory is new game+ on deathgame mode...