Where's the study on what PETA does with the animal corpses? I'm forced to wonder who benifits from a policy that exterminates 94% of the charges in their care, it certainley isn't the animal.

When you send perfectionism up the ladder someone usually falls on you. Just hold the ladder.

I found a 7" netbook for $46.99 USD here that meets your basic requirements (keyboard, display, low power consumption) with the quantities you'd need.

Combine that with a freeware solution like LibreOffice.

I'm no expert but I think this combination would serve you well.