[rambow]

They are the same frames and springs, however the listing rods that attach to the springs and define the tucks in the covers, are sometimes in a different place for standard vs deluxe and you have to adjust/move them on the springs.

the way you would determine if it needs this (and if you have to do it, how you ID where they get moved to) is by temp installing the new buns and then see how the listing rods line up under the buns. If they line up, then you are good to go.
If they don't... then you need to remove the existing ones and fabricate up new ones and attach to the spring assembly corresponding to the location of the channels in the buns.