I've got a bunch of 16x2s I could sell you but only 2 20x4's which is what you need.
I *just* received one from ebay that is identical to the Gen 4 that cost $9.80 from ebay:
I need one for my Prusa and one for another project I'm working on.
We can discuss on Saturday though as I may have a 3rd one...will have to check.
PS Brad: open invite to my place Saturday afternoon...Kurtis is coming by to check out my printers.