Google is a very bad search engine for such things, because it searches a lot of sites that have nothing to do with RM. It would have been better if you used this sites search engine.
That said, I see nothing in your post that would require scripts. You can rename all parameters in the database, and the use of those parameters depends on the fully editable skill damage formulas - for example, you can rename MAT to Wisdom, and then replace the skill damage formula for magic attacks (default 4*a.mat - 2*b.mdf, change to 4*a.mat - 2*b.mat). Internally the program would use MAT but all your displays would name that as "Wisdom".
If you want to add more parameters than the database allows, you can use a script like Nasty's extra stat script (search for "extra stat" on either the master script list or in this forum).
However, adding parameters is only half the work - you also need to tell the program what to do with those numbers. As long as they only affect damage, you can do that with the damage formula yourself. If they should affect something else, then you need to tell the scripter what those numbers are supposed to do.
And that can't be done by "like unknown game XYZ" - you can never assume that a scripter has played the same games as you do, you need to describe what you want to them (If I remember correctly one of the more active scripters here has stated somewhere that he rarely plays any games at all, because scripting is more fun than playing games).