I finished installing the FROLI Star System. Double Bed Package + 12 Pack Expansion was the perfect size, used every piece and didn't have any left over. 108 pieces total. The cost shipped was $361.
I cut around the under floor covers and attached those sections with 1/2 inch stainless steel screws to the cover so that I can easily remove them to access the storage. In retrospect, probably could have done a little better with the spacing but the entire floor is covered.
The height of the mattress is exactly the same as it was with the Hypervent and 2 inch foam topper.
Felt good laying on it the first time, a full night will tell the story!
Randy
Update 10/9/17 Couldn't wait, slept in my driveway last night. I can honestly say that it is as comfortable as my home mattress. As a side sleeper I was having trouble with hip pain and pressure points but this took care of it. Very pleased, one of my favorite mods to date.