I edited the file and emailed you back. Extract the zip file into the 'act2end' save I've already provided.
The 'new npc' sections of the data file (described in the
hex teleporting topic) will change the character appearance and learned skills. Since you are playing a mage hero, I also copied over sections for the stat/skill points (see
here), so you could distribute them as you wish. Before doing that, in your original file I edited your characters' experience points to match what I had at the end of act 2, then got some experience points so the game would update their level (to 18).
I also updated/opened the Shaman and Ethereal skill paths.
When you load the game, a lot of the equipment will be disabled (due to minimum requirements), and you will be encumbered. I kept some older equipment, so you may be able to find stuff more suitable for a mage. Sort out what you may use and what you will not, give extra food, etc to a summoning doll, then visit the BF to sell excess stuff and look for mage equipment, if required.
You can quicksave, enter the BF, check for equipment and then quickload if there is nothing there you can use.
