To make alterations with these particular skills I think you will need NWNX since they are connected to how perception works and are hard coded. They are also linked to several feats. Of all the skills to modify, I think you picked a significant challenge.
My recommendation is to look at "Ride" if you don't have mounts, and also to look at "Intimidate", "Bluff", and "Persuade" and consider whether you can give up one or two of those.
--edit--
but to give you an inkling as to what needs to be done when dealing with stealth skills.
"Hide" is renamed to "Stealth"
"Spot" is renamed to "Perception"
Stealth Feat needs to be altered somehow so as only to give its bonus to the stealth skill.
Alertness, Keen Senses, and the handfull of other feats which give a bonus to "Listen" need to be altered so as only to give a bonus to "Spot/Perception"
Perception AI Scripts need to be gone through to remove checks for what the creature hears. Only Sight checks should be made since you only plan to use Spot and Hide skills.
Modifié par henesua, 18 janvier 2014 - 12:08 .