of course, but for starters, let everybody experience the game as it comes retail.
Vidmaster's principle, you know... 
Well, what I linked is just a kit. Similar to the Cavalier, Inquisitor and Undead Hunter kits that are already part of the game. It's also farely balanced (more offense in exchange for less healing and less defense)
As for as the stats go - better stats can help you in a few places, but you can pretty much pass everything without them. However, in order to see everything, you'd need to play the game 10 times with different PC classes. Each class has it's own sub-quests and strongold.
I reccomend a paladin or a fighter, since their strongholds and quests are kickass. You can even cheat and enable the Keep trongold for the paladin. All it takes is to edit one conversation check

Not sure if it's as easy to enable the other way around.