You can get just the extensions on ebay, or somewhere like that, maybe even rare spares..?
Drill two holes either side - about 6mm, in the same location as the back of the SLE extensions, and screw/bolt into place...
Nothing to it, as they're just the standard lights, with the reflector extensions on the end.
Chrome surround around the bootlid/tail lights?
You'll need the plastic clips that hold it onto the bootlid - they sort of push into (4mm? circle) hole, 6 or 8, or more.
And 2 plastic sleeves that hold on either side tail light piece, and a screw up the top on each side.
Rare spares sell them, not sure on part numbers, but if you're getting them off a wreck, just try not to break any of them and re-use them!
Black plastic garnish? like the VK's? not too sure, but i'd assume they'd be similar to the lights.
Does any of that help? if you want more details / or anything else, I might be able to help out!
Its too late, and i'm seeing double, so "Thats All Folks!" :beer chug: