Quote:1) Leveling and party choice: naturally the player should start with a choice of 4 commanders, so the shooting ability is present, although disabled until the skill is acquired. Before the game starts, we have a choice between 7 classes, each one with special abilities. Leveling is done using the hero system (!?HL) in the following way:

Each 2000 exp points a box is opened and 4 experience points are received and allocated manually to the HP/speed/damage l&h/attack/defense of the choose commander. After the operation is done, the hero is bring back to 0 experience points. This script is already done for my tests for an Oblivion map.

If the player choose to keep the 4 points, then the following points from battles are added and once he has (ex)10 he can allocate them to the hero, improving skills (buy fire etc), speed, mana, knowledge.

My suggestion is:

1) Hero does not have experience at all.
At Battle start exp is set to very negative value, at the end is restored to zero.

2) Max 7 heroes allowed. All are representated by unique creatures. All CM-s on slots are hooked and control is passed to Hero Menu function. So we cannot move stacks in hero/town screens or dismiss heroes.

3) Every Hero has his/her own statistics menu, not a default one.
4) At every battle event script spies on heroes' health (so heroes won't regenerate full life after battle)
5) exp points are added during the battle when a particular hero kills particular enemy. The amount of xp for enemy is set manually.
6) about the travel. You won't be able to put hero in the boat or to teleport him on the ground. But we could emulate the process. Maybe, it's what you meant
7) Hero classes. Afair, there were more than 4 classes in MM6. It would be great to have at least 7. Class affects available artifacts, mana, hit points, damage, spells and so on. About spells. If you use Era, you will be able to change spells names and descriptions dinamically. So imagine.

Cleric moves. Player opens magic books. We clear hero spells. Then load spells, that cleric has and rename them. Druid moves. We do the same work for druid and so on.
8) In battle heroes can use potions.
9) Enable artefacts specificity
When artifact is equiped, the current chosen hero (his name is the name of game hero) is tested for neccessary skills. If he cannot use the art, the a message is displayed and art is put to backpack.

Quote:I will extract the maps one by one from the lod and will probably split them in two parts, one being the surface, the other the underground (no better idea so far)

Didn't understand

Quote:I am not sure this huge work can be done alone, so if anyone wants to create a team, I will be glad.

I can help you with suggestions. If you won't be against building the project on Era platform and using some tools, I can help with scripting too.
Anyway, good luck.