Pre-Searing Mesmer Armor
Null
So far I've found the boots, legs, and chest. Do the gloves exist anywhere in Pre-Searing Ascalon, or are they like the (seemingly missing) elementalist and necromancer chest pieces?
Marksmann
Yes, there are no upgraded Mesmer gloves to be found in pre-sear Tyria, at least none that have been found, as yet. But you'll be replacing whatever you have, once you get to post-sear Ascalon anyway. 