99+ Spoiler on a 97??? Possible???

I see these black widow spoilers for 99 and up in carbon fiber... DO NOT FLAME ME!!! Everyone has their own point of view just help me on my question. I was wondering how much modification it would take to make it fit on a 94-98 style...
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33638&item=2457114611

The item on ebay!!!

I already e-mailed him and he said it is attended for the 99 and up and I cant gaurantee anything and he has heard nothing from carbon creations about them making one for my car... They offer nice products like carbon fiber fenders and hoods and so forth. Im still undecided about painting these parts I may and I might not... Time will tell... I know my old holes will need welded and new holes drilled but thats nothing... I know the 94-98 trunks curve... 99+ is flat but no way of knowing this unless I had a spyder spoiler for 99 up and tried it on my car or someone else have but thanks for the help so far...