Congratulations on your purchase. Although, I hope you did a lot of research before buying and didn't buy, now are doing research.
I'm not sure which Nosler rifle you bought since they are all the model 48 (Custom Sporter/Varmint/Trophy Grade) minus the "Custom Rifle", which still has the same action.
Cerakoting the barreled action is a definite plus against corrosion, much better than stainless or bluing, and it is incredibly abrasion resistant.
The Bell and Carlson stocks are not the most expensive (or the best IMO) stocks to have around, but Remington uses them a lot and now some custom gunmakers are as well. I got a lemon of a B&C stock a few years ago, so I'm not a big fan, but maybe they've improved lately. The aluminum bedding block design is better than just slapping a wood/laminate/plastic stock on a barreled action, but the fit will not be as precise as an actuall bedding job by yourself or a qualified gunsmith. I like the way that Nosler puts down that "...the whole package is custom aluminum bedded..." (trophy grade ad). A bit of salesmanship to the unknowing if you ask me.