For the jewelry, Kenarthi's Roost has the most chests probably. For armor that doesn't come in training trait your best bets are the quest rewards from starter island quests.
There are at least one medium and a light as well but those two heavies are probably the best traits that are available. For a 5 piece you'll need one piece of armor with training (only the chest and weapon quest rewards come in non-training traits other than the jewelry). There is a sharpened dagger and sword and an impen and sturdy shield but it's probably not a great idea to wear this set on weapons/shield.
The sword I think you get from Stros M'kai, one of the first quests I believe. You get it as a reward so I don't think you'll be able to get 2, you could always buy the other off a guild trader (their like 70k?) or do the quests on another character. I believe there is also a sharpened dagger but don't know if that is of any use