I would just empty it completely but I like the idea of a large flat area and understand the spacesaver comes up to the level of the sides, so you can just put the lining on top.
Sooo:
ANy post-facelift 4th genners have a photo of the boot setup please? Pref with ALL stuff in shot, i.e. any toolkit etc.
Also, anyone in the herts or surrounding area got a nice cheap spacesaver they want to sell?

Muchos Ta!