Same height as me, though a lot of my length is in my legs.
There's some pretty light tires out there in the 33-35mm range; with your height I'd go 700 and avoid the extra hassle and expense of having to source 650B components.
700x35 is heavier than 650bx35, of which mean less toe overlap, even with mudguard.
700x35 is heavier than 650bx35, of which mean less toe overlap, even with mudguard.