Do you still have 2 equipment grids, 1 for the vehicle and 1 for "player?". If you only have 1 equipment grid size of MK2 power armor in lategame then this mod would be a big nerf. Should be clarified in description.

Spidertron Engineer MK6 has a 12x12 equipment grid (= 144 spaces), which is roughly equal to vanilla's Power Armour MK2 10x10 (= 100 spaces) + Spidertron 10 x 6 (= 60 spaces).

Ok so it is a bit of a nerf but not huge. And power and batteries apply to everything now so you don't need as much back-up power generation and longer-term storage.

(You can get the equipment grid details from the screenshotted tooltips. Admittedly they are not 100% up-to-date, but this bit is definitely still correct.