Actually, the new T3s, at least from what I have seen, are actually a bit cheaper than the WHs.
The T3s are lighter, so I think that the stocks and barrels are thinner. I have never held a T3 in my hand, so I don't really know for certain.
I have 2 WHs - one .25-06 in Stainless Laminated, and a .243 in Stainess Synthetic. These are awesome guns - I can't imagine trying to "improve" them.
Zachary