Where did he say he was wheelin it hard? It's all relative man, compared to what you do maybe the B isn't that hard, but compared to what others do the terrain you take your rig on isn't even worth locking the hubs--does that make it any more or less enjoyable for the individual?
Everyone starts somewhere. I started out tinkering around up at the B too 15 years ago, and I remember when I thought Poison Spider was terrifying.
As long as you stay off the throttle, don't get bound up, and don't bounce it, your stock 33/HD44 drive train will serve you fine for up to 35's. The stock front CV driveshaft will fail, and you may want to look into swapping to ujointed from shafts, but go use it until you can justify the expense of upgrading those things. The rear 44 in that thing may not have much aftermarket support, but it's not THAT bad of an axle.