If you have a supply of recipes and ingredients, you can level provisioning in less that an hour. This tome suggests recommendations on leveling recipes, their ingredients, and links to sources of ingredients.
A bit frustrated trying to find Skyshard (4), On the lip of the Skybridge?
There are two elevators up to the Skybridge. The easiest and closest is one in the south part of the Rector District (Western Area) of the Brass Fortress. Please be advised that the path to the elevator is guarded by Factotums.