I was going to get a Arc'teryx Kamsin 62, but it did not fit very well. I tried on a Makalu and it fit pretty well. I can get one for under $300. I am also looking at Osprey's Ceres 70, if i can find one to try on. I am kind of hard to fit. I am looking for a top loader/single sack pack about 4200ci/65L, around 41/2lbs and carry 35-40lbs. I have thought about getting a Serratus through MEC, but I am wondering about returns/cost to Canada because of my fit problems. I have also thought about just spending the $$$ and getting a McHale Super Sarc made. Any suggestions are appreciated. Thanks.