funny your looking for sills, Im guessing you want the style that covers the plastic (not like the above posted altho i kind of like those too). I did find some for my truck that were like $80 bucks for all four sills! thing is they have say ''ESCALADE'' and have a caddy badge on them. good for me bad for you. Howerever the same website CarPartsDiscount,inc. has some sills for a silverado that just have a bowtie on them for $45 bucks but of course thats only the front doors. Im guessing you want these not only for looks but to protect that new sexy black interior that you keep teaseing us with! Id really love to do the same thing but like you said everthings ''just another $500 dollars''