I need to refresh my wet-dry sandpaper supply for my Scarey-Sharp
sharpening system...

To do this I like to buy 3-5 sheets each of about 12 different grits of
sandpaper from 150 grit up to 3000.

Buying individual small packs is usually quite cost-prohibitive.

Any advice on sources that would sell a mixed pack of total say 36-100
sheets at an affordable price?

Thanks