1. You can google for "kindle 2 disassemble" to find necessary instructions.
2. Not any. Those from Kindle 3 and Sony PRS 650 are not compatible with Cool-er, Sony PRS 500's and Kindle 1's are, but they are of an older generation (lower contrast), Nook and Sony PRS 505 have their screens glued. So Kindle 2 or another Netronix' clone are the best donor candidates.