wither storm spawn point for my 16 wither storm all add ons

this is a world for my 1.16.5 wither storm all addons mod pack since CWSM for 1.16.5 dose not have a rundown house and what it has is a wither storm spwn point by the spawn point and a chest that has a wither skull and a wither storm spawner for the other wither storm so you can fight them both but i would only do 1 at a time

so it has the wither storm spawn blocks with 3 soul sand 1 command block and 2 wither skulls together already so all thats left is to go in the chest which has 1 wither skull and a spawner for the other wither storm and then decide which one you are going to fight first then fight and once you have both there nether stars dispay them with 2 item frams and that would be the greatest display ever