Had a different thought, so for what it's worth...
http://www.newegg.com/Product/Product.aspx?Item=N82E16883108934 Notice the size, price, and Win7Pro so he could join a network. Get a pelican box for traveling if concerned.
Get a monitor in Peru.
Get a tablet, best wifi antenna for the money may be important.
Buy these things at the college bookstore with educational discounts for hardware and software needed.
