MK3 and MK4 power armors (bigger grid, larger inventory), also adds various equipment (Night vision MK2, Energy shield MK3, Fusion battery, Singularity...)
I had used this mod extensively in my previous games. recently I installed extended vanilla mod which has expanded personal roboports and such. is it feasible to make the armors accept the items from that mod? some of them cannot be placed in.
Might be best to ask 77playmaker for that, it would be a lot less work for him to do than me. Although if he doesn't do it sometime soon I'll consider it when I have time.