Moving from Melzi to RAMPS

Hello. Recently I've bought a 3d Printer - Prusa i3. I've managed to successfully assemble and run it. Then I had some troubles with actual printing and somehow broken my Melzi board, so I've decided to repalce it with RAMPS. There's different wiring scheme. For comparison I'm providing the images:

and


Most of it's not a problem, since all I got to do is just connect appropriate wires.
The biggest difference that creates problem's LCD Screen and Endstops. As you can see my LCD got a different connector, and my Endstops that look like Z Stop from Melzi Wiring Diagram.

What should I do with LCD screen? Replace it with one that'll work with RAMPS diagram? And Endstops, mine have only 2 wires, while RAMPS's have 3. Is there any workaround or do I also need to buy those that'll fit the description?

For the two wire endstops, just use the - and s pins. You won't be using the +5v pin.