Cheap parts and it's an incomplete hotside. would be wary of the turbo headers and turbo quality. IC is too small. Also the way those headers place the turbo's downpipe construction is going to be a big concern. My advice is if he want's to use an Ebay kit, use the single one with a MP t70, it's actually not as difficult to fabricate.

One of my buddies used one of these kits. You can check his build here.
Updated Twin Turbo build pics - RICEKILLER.COM FORUMS