You could always try a ski like the Armada Alpha 1s. They have a tip/tail rocker which makes the skis quite butterable. They make them in a 176 cm which would be perfect for your weight.
I have had mine for two seasons now and they take abuse quite well. The bases are still in prime condition and the edges have held up to rails just as good.
Most importantly I was impressed with how versatile the skis are. They do very well in pow considering their dimensions. They also hold edges well on groomers.
Highly recommended.