Did you mean CYVN Cape Dyer?
Yesyes.. there memory is failing me already at early age
I´m not sure about the fuel situation at Cape Dyer, it used to be that you could get JET-A if prearranged there but I have no idea about Avgas?
Ok it´s a god idea for you to wait until summer, it´s a interesting trip.
PM me if you need any contacts!
Check this page for Greenland airports:
http://www.glv.gl/