It’s 5.9”x3.2” wide, so won’t fit in the chamber. Looks like the NF-1 won’t either (it’s 2.76”x4.15”).I would look at the aquamaxx ws-1, bigger size yes, but you can adjust water level and air intake and should be able to compensate. Because it has a small footprint and neck size it should work well on your size tank. It also has the sicce se 200 (or shark 1.0 same thing) on it so you can swap that onto the icecap if you like that skimmer body better. Buying the ws 1 would just give you two options in the future so its something to consider.
Again best of luck with whichever way you decide to go in the future for right now you might as well wait to see if this new pump even dies soon