Not a kit for the Elise (For an aprillia I think?) but had panel captive nut things and DZ1 rings. Only the very front sill bolts can't easily be swapped out as the chassis is in the way. The rest was fairly straight forward. The side ones you have to undo a few bolts form the shear panel to get them in and the rearmost outer 2 needed slight fettling to move the clips inboard by 3mm or so, 30 seconds with a round file. I fitted them with 20mm washers on the outside for most of them and 12mm washers between the tray to tray joint to space them out a bit.
Just 2 5mm bolts and the 4 8mm bolts then 14 half turns and all the trays are off!
Been for a blatt and they are still attached! Even fixed the handbrake cable rattle....
Total cost - £25 for the kit and £2 for new washers
Will let you know how they weather....
Rich

