I checked out that source and looked at the list of parts. What scares me is that no brand names were listed and there are many off-shore crankshaft/rod/piston/cam manufacturers right now (Hawk Racing, RPM, Pacific Pro, etc) and with this kind of pricing, I'm sure that's what they're using. The only brand name I saw was ARP and even it was spelled wrong.
There was also not a mention of MSD/Mallory ignition products....I suppose I could assume he's using Procomp for ignition?
There were a lot of things missing for a turn-key setup: coil, plug wires, wires, pulleys, PCV valve, water neck, thermostat, air cleaner....basically all the things that add up when you're going for a turn-key.
I use quality parts in my builds...Scat, Callies, Probe, Wiseco, Comp Cams, ARP, MSD, Canton, Moroso, etc/etc.
You get what you pay for...