I would not buy the lip spoiler seperately. An integrated lip spoiler would make the trunk look best.
Im my case it is either a trunk with no spoiler or a trunk with an integrated spoiler.
Another concern of mine is whether or not there will still be a plastic piece that hold the license plate in. I saw someone on the forums who had molded that whole section of the trunk. Please tell me this one will be molded in and all CF. The only non-carbon fiber parts I want to see on this trunk are my license plate and the pre 98 inner tail lights.