I think you could go to en.scorser.com. It's a great sheet music engine, and you can even download works that are still under copyright. I got a Shostakovich prelude, and Shostakovich isn't even on imslp, lol.
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Make sure you click "Download free scores: PDF" when you get to the second link. 
while i applaud your enthusiasm and willingness to help.
it is 'frowned' upon, at least by many around these parts to post or link, or openly discuss and name websites that facilitate the downloading of copyrighted works.
it is at least my humble opinion and sincere ,and hopefully recieved as polite, request that you woudl share that information privately via PM or email, preferrably email with the inteded individual, i.e. OP
one possible 'grey area' might be fan or amateur transcriptions that are not 'commercial' in nature, i.e distrubted freely or have non commercial copyrights where the artist gives explicit permision to freely distribute or where maybe talanted amateurs figure something out by 'ear' and put notes on the page so to speak, that might fly, still wrestling abit w that one myself.
i edited the quote to give you the chance to 'do the right thing' and edit your posts that name and specify how to download copyrighted works, i won't tell you not to and what to discuss privately but would at least hope you see the reason behind my (and collective 'our' w those that share my sentiments) for not wanting that info on the public boards.