Here's a China site that I forgot about having bookmarked and ordered from also in the past. They do show large case lots but you can order 1 of an item. I usually order at least 1 of each case to see what they look like because it's so cheap even if you don't use many of them.
Go to the Galaxy tab and look for 'Note 3' or 'N9000'. You can do a search too. Lot's of parts for S3's & S4's too.
Tons of Galaxy stuff!
Electronics wholesale from China, Direct from China at factory prices, Online Wholesaler and Dropshipper