If you are still looking, we just received another pair of MX78's in a 176cm. We had an order in the system for a while now and this just sort of "Popped Up". We also received a FX94 in a 176cm length as well.
You can check them out here: https://fotm.fireonthemountain-burningboards.com/store.php?cat=46&mf=75
Also any New England skiers should stop by Pats Peak in Henniker, NH this Saturday as most if not all of these models will be available for demo.