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It's a little hard to tell what's going on in that sump pic, but I'd feel comfortable assuming six to seven feet of head-loss - 5' of lift + 2' for plumbing/friction loss.
According to that chart, the 3.0 in your scenario should be delivering just over 500 gph - about double the max you should need.
If you throttle the Sicce down to about 50% output* you'll save power and probably be fine with this pump.
They don't make a next-size-down from the looks of it (the 2.0 delivers only 66 gph in your scenario), so I can't suggest a better model.
* You'd have to be able to measure the actual flow to know. It's not too difficult for me to measure my drain water - YMMV.
That was someone else with the sicce. I have a mag 9.5 on it right now.