Sounds like you know all the critical pieces to get.

What scope? I have the Leupold FX-II Ultralight 2.5X20 on mine(a Guide gun).

I went through the "earth-shaker" load phase, now I've gotten to where I like something like a 300 grain bullet at around 1600 to 1900 fps just fine. They kill deer graveyard dead, and last time I looked, the bear weren't too oversized, either. No need for 435 grain bullets at 1800+ fps.