Its really nice you're thinking about your old school.  You might still want to consider selling those things off in ebay (if that's possible) and buying something new in the Nepal market.  There are a wide variety of cheaper substitutes from Taiwan, China and Malaysia, and all of them work.  The prices start around USD 50, a small price to pay for a new generation of children aspiring to connect with the world:-)

Cheers, SB