Is there a 3rd party X-mount lens (price & function) similar to Fujinon's portrait lens?

I’m interested in these two lenses for portraiture:

• X-mount Fujinon XF 56mm F1.2 R
• Micro Four Thirds’ Olympus M. Zuiko Digital ED 45mm f1.8

The problem is I want a decent portrait lens, but the Fujinon runs USD $1000. I’d rather pay the price of the Olympus lens (USD $400).

So I’d really like to know if there is a comparable lens in X-mount, but priced like the Olympus, that I simply don’t know about.

I’d also be interested in a decent (affordably-priced & technically feasible) adapter that will allow me to use the Olympus lens with the Fujifilm X-E2 without many drawbacks? (My highest priority being quick AF).