Please, please, PLEASE upgrade your weapon. It slows down XH UQ's (with Luther easily turning into a painful slog) and when Ep.4 hits content is being introduced where people can't carry you nearly as well as before (if at all).
So please upgrade your sigma/nox/deo(oof) or better to +30. Unless you ignore your dailies and yerkes weeklies, yes you have enough meseta for it. If you make two alts then you can make even more meseta from just logging onto an alt and turning in stuff for dailies that want a single unique fish.
Please upgrade your weapon.