Cutlass RS SSS HB swap….

If an owner of an SSS cutlass were to buy an extra HB slotted pick guard, and in the interest of easy swapping, 2 extra single coils too, would that owner be forgoing both the silent circuit and the buffer in this new setup?

Secondarily, If this owner were to simply swap in a HB from another manufacturer, yet retain the original neck and middle single coils, would this owner be able to enjoy the benefits of both buffer and silent circuit systems in all pickup positions as if it were a HSS from the factory, or would this owner be forgoing these systems on the aftermarket HB, yet keep them on 3,4 and 5 positio0ns?