I would reccomend that you get the stock that fits your barreled action.
That way,it'll be drop in fit. As to glass vs pillar bedding,anout 1/2 of your decision will be determined of your intended use of rifle. The main thing if you attempt this yourself,is your skill/knowledge level. My first reaction is you should have local gunsmith do this because he will do a perfect job.
There are basically 3 different levels of bedding.#1 is glass bedding,#2 is pillar bedding,#3 is full length aluminum bedding block. The 1st 2 types can be done to any stock,while the 3rd has to be ordered thay.