Fishmode,

Welcome to the fire! As for a Norrona Reconpack, I don't have an idea. 40 kg is a pretty massive load. Have you looked at some of the packs designed for elk/moose hunting? They are designed to carry a heavy load through rough country. Cabela's has a large selection of such packs. Some of the bigger hunters on this forum can probably direct you to higher quality packs than the Cabela's ones.

-Blast