U should build next is a armor stand table so that tips are use a sticky piston and armor stand and a lever to activate the top and bottom of it and use any block u want for it and use a iron helmet for plates
In my opinion the armor equiper rating is 9 out of 10 instant elevator 8.5 out of 10 defensive base :10 out of 10 and I will try to build it also in my survival world