If you're going for the "clean fender look (ie..no holes) you'll have to weld a small plate on the back of the fender, fill the small little groove left behind with bondo, primer it, and then repaint the fener.
It's a real pain in the ***. I'd slap on the V6 or LX emblems you previously mentioned. Just a thought.
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1988 5.0 notch: Previously never modified!! 
SN95 block front and rear seats, Mac catback, BBK off-road H-pipe, Steeda castor camber plates, Steeda lowering springs, Tokico shocks/struts, Alpine/MBQuart/PPI audio mods...
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