I'm In late 60s , lost a vision in one eye, a city guy, travelled by myself. D800e, 16-35, 28-300, 80-400, Gitzo tripod, various accessories. Travelled thru' N.M, Utah, Az, Nevada, hiked thru' all national parks. Travelled by myself thru' India same gear, I wouldn't change a thing. Now I switched to Leica M & Leica V-Lux. Not a significant savings in weight from D800e & Leica M, But the D.R of D800 series guarantees you that you don't lose a single shot. To me it is a no brainer - take your D800 & grab appropriate zooms, if you must take bean bags in lieu of Tripod. IMHO.