There is a 110 size Monolog which would be good on 8S 5000's:
http://www.f3aunlimited.com/webstore...roducts_id=533
Sebart Wind 110 is designed for 8S:
http://www.f3aunlimited.com/webstore...products_id=36
You could do one of the 71"-72" planes from 3Dhobbyshop.com if you want something not so geared towards pattern.