Don't do ebay.
My local retail shop does mail order as well.
Here is a standard starter kit.
Joyetech eGo-C with 650 Mah Battery Starter Kit - $69.99 | DFWvapor.com, The Best US E-Liquid Made!
If friend sticks with it he / she will start upgrading tanks and such but the batteries and charger in this kit are fairly universal.
Don't forget to get juice.
http://www.dfwvapor.com/e-liquid-flavors.html
What brand does your friend smoke, lights, menthol or non menthol and how much, pack a day, 2 packs a day, 1/2 pack?