nex 5r or 6?

Hello.

Debating between nex-5r (or perhaps a 5n if I find one ) and nex - 6 as second camera for wide angle shots.

As the 16-50 kit lens does not seem very good, and I don´t mind the EVF, I wonder if a nex 5r would do the job with the kit lens, and perhaps later add a 16 mm. with uwa converter or just use sweep panorama for extra wide scenes..

Will I miss something with the nex 6 apart os EVF ? (and save some $$ for buying other lenses)