Loos road does not take you to Kakwa unless you cross one range. Walker CreekRoad takes you to the cabin at Kakwa lake after about a 110 KM ride. Good luck, pack fuel(a skidder full) and make sure the road is open still for winter passage legally. Closed in the summer.
I have never tried this ride as it is even further than Walker Creek. Can you pull a skidder over the top past the million dollar mile? This would be over a 250 KM round trip with some decent climbs, I have never tried this route myself. Would be gooder if you have the fuel. Personally I prefer these rides to beating the crap out of the same old hills!