I do kids sports, seniors, family, just about what ever anyone needs. Bread and butter is kids T&I and seniors. My favorite is live sports i.e. lacrosse and football. I just don't make any money on the live sports, I do it for fun. I do have a budget for a new 1dx II for a bout 5500.00, there's a couple around for that price. My arsonal is as follows: 5D3, 7D, 70-200 2.8 IS Mk1, 24-70 MkII, 85 1.8, 50 1.4 (the last two haven't seen light of day in over a year) and 1.4 ext Mk1. I would like to upgrade to 70-200 MkII to go along with 1DX. So I can sell the 70-200 Mk1 and 5D3 or 7D to help off set cost. My dilemma is which to get rid of, the 5D3 or the 7D. For the amount of work I do, the work load gets split about 50/50 between those body's. I realize the 1DX can outperform both those. So which should I keep and a backup and which goes on the selling block? Thanks, Dave