Guild Wars 2

Hey guys! Today i think to finally get my exotic level 80 armour thought i need to decide upon something, should i just craft it or buy it because the set that i want is selled in the TP and i can afford it in the moment, ofcourse i will become really poor after that thought i think that the same will happen if i decide to craft it.. thought i am not sure so i just wanted to ask what do you think will save me more money, crafting or buying, i have some materials stored up everything that i have gathered through my leveling to 80 is stored up in my collectibles bank, thought still i really dont think i have too much of the things required for leaterworking as i have more cooking supplies and tons of ores, thought for leatherworking i really dont have that much supplies, so if i would have to buy all my materials from my leveling to 100 to 400 and then crafting this armour how much will it take? If someone has already crafted his and remember how much gold he has used to do so please share because i really dont want to end up with having only 2 pieces of the armour and no money. So yeah.. also another quick question, now that i am level 80 and have done most of the things on my to-do list of GW2 i think i will be more going into the WvW world so i have decided upon getting Knight’s armour thought i am not sure if its good for a thief, so again any advises if you think others armour will be better thought because of condition damage being so easily removed in PVP i really think its either knight’s armour or berserk’s which if i am not mistaken was power,precision and critical strike. So yeah if you have any options on that will be awesome and yeah thanks for reading through and hope you can help out in some way!