Fitting Kaime spoiler help please

[dave18]

Hey peeps i got a Kaime spoiler off of ebay the other week ( well it might not be the real one as it has like a scoop on either side but still) The PO said he didnt have any fittings nor remmember how to fit it, Was curious to see how you lot have fitted yours and any adice, It has two cut outs where i guess the indicators would sit around or bumper brackets, on one side of these cut outs is a hole then 4 or 5 small ones along the middle, Would it also be an idea to add some form of support from the lower valence onto the lower edge??? cheers peeps much appreciated,