Ok, pics added by popular request in another thread
(not really, no-one asked but it makes me fell better to pretend it is...)
Arch liners and bulkhead trim covers are identical so no pics of them.
Tried to take pics of space saver and then the equivalent full size spare.
Complete guts of the full size floor

Same but with the right hand side polystyrene spacer removed from under the cover
Comparison of the space saver floor cover (bottom) full size (top)

Full size is larger on the left hand side and has 2 folds in it.
(Ignore the extra slit/folding section you can see on the full size floor at the top - I had to cut the slit and make the extra folds to fit round the custom amp brackets in the boot of mine. The top folding section should be once piece instead of cut in the middle)
Space saver floor on top of the full size.

Only difference as you can see, is full size is bigger at the left. This is the bit you could trim off to make it fit a space saver floor. Downside to doing that rather than getting the 'pukka' space saver floor is that the hardboard wouldn't be 'sealed' on that edge so would be more prone to damp and the furry cover delaminating.
This is how the right hand side bit differs.
Pocket on the right hand side of the space saver floor.

As mentioned earlier, this is attached to the arch liner on that side so it comes out as one piece, but it is a separate moulding that can be detached from the liner, so the liner is the same.
Same bit on the full size spare floor (the polystyrene spacer lifted out)
This shows the full size floor cover laid over the space saver pocket
