Hope Hoops are great value… Straight pull might theoretically be better but when I broke one of mine in fort william, nobody had any straight pulls at all never mind the correct one. My Hoops have standard DT Comps, everyone stocks them and even if they don't they'll have something to fit.
Your rim choice is all over the shop though. Check out Stans, as a rule they're stronger for the same weight, or lighter for the same strength, depending on how you choose to look at it. 717s are OK but pretty ordinary, good for a lowish-budget XC wheelset but they don't make so much sense if you're spending enough for Hope hubs… They weigh exactly the same as Stans Arch but are much less strong. DT seem to really lack behind.
I couldn't be more pleased with my Hope Hoops Flows, but they're not all that light, then they're not supposed to be.