Trying to by bulk supplies to help a local grade school...any sources?

The local catholic schools are having a tough time. We donate money, and try to help in other ways...

Our local school needs paper/office supplies/etc. Typically we just go to Sam's Club and buy a bunch... but is there a better way?

Anyone aware of places you can buy paper/etc in bulk? Best prices I have seen are about $25 for 2500 sheets...

Any place you can buy $1000 worth or so, and get more???

Any recyclers that sell the stuff???

It doesn't have to be pristine, as the school uses lots of paper that already has writing on the other side, that businesses donate - but that's a sporadic supply...

Any thoughts on how I can help my local grade school are appreciated!

Bo