I have not used Stocky's house brand stocks but they look to be well made. You will still have to use bedding compound on any stock to make it fit the recoil lug of your rifle unless you pick one with an aluminum chassis inside. The aluminum chassis stocks usually fit the lug well enough for a hunting rifle.
Swapping out a 700 trigger is a job that most DIY guys will have no trouble doing in a few minutes. Just tap the two pins out enough to make the swap. It might be a good idea to use your phone to take a couple pictures of the old trigger before beginning just in case you can not remember how the little spring fits in the bolt stop. A few strokes with a file may be needed inside the slot in the trigger guard if the new trigger blade rubs against it.