Question regarding ascended reward.
Check out Dulfy’s guide. You will have to complete parts 1 and 2 to get the necessary items to start crafting the first backpiece.
You start with Part 1 to craft the initial Mysterious Vine backpiece by getting items from the stories you complete. Making the first backpack also gives you a Cultivated Seed you need for the second one.
http://dulfy.net/2014/07/29/gw2-mysterious-vine-backpiece-guide/
At the end of Party Politics you get a Chaos Orb for this second backpack that you use in the next clay pot you make or buy. You also get additional items during the various story sections that you need to enhance by visiting other areas around the world. Ultimately you end up with the Cultivated Vine Backpiece.
http://dulfy.net/2014/08/13/gw2-cultivated-vine-backpiece-guide/
If you want the Ascended, there is a lot more to do. Which involves going around the world collecting items and doing Fractals for the Pristine Fractal Relics used for this piece.
http://dulfy.net/2014/08/13/gw2-mawdrey-ascended-backpiece-and-pet-crafting-guide/
It is definitely doable. I just finished Mawdrey/Mawdrey II yesterday. A bit of planning and work make this possible. I never did fractals before but if you look in LFG section for any postings that have everyone welcome or doing level 1 with noobs those ended up being some really nice groups and I had a pretty good time. Once or twice we kept wiping at a boss but we kept at it and figured it out and it really felt good when we defeated him. It turned out harvesting the Foxfire was the grindiest part of the whole thing. I really liked the variety of things you had to do and places you had to go to put these backpieces together.