Maybe add a shulker spawner to some sort of crate or /pointshop spawnegg. Atm you can only really get shulkers via /shop but theyre pricy and without fly its going to be hard to search the end for them.
Good idea but they are supposed to be a challenge to get them. Although I do agree with it being in the point shop but it should cost 1 spawnegg for 1 point rather than 2 spawn eggs for 1 point.