Those deals are structured based on performances so it'd be 40 odd upfront and then a bunch of payments based on performances. Won't be a problem for the big clubs.
I don't see us going for him anyways if we go for Greizmann. Just saying if we want him, we have to move this summer.
I think Monaco may want to hold out for more money next year. If he's good enough then his value will keep going up and they will see a bidding war next summer (2018). Realistically, there are only about 2-3 clubs willing to pay that much anyway.