serious street power.

You're overlooking a binch. Block hardware, cam bearings and installation, rod bolts, resizing, oil pump, pickup, and drive, a timing set, gaskets a bathtub, cleaning of tin and stuff, paint, all the tuneup and oil change stuff. I also cant believe the machine work's that cheap. I'd be wary of anything that cheap unless its a family member or something. I'm not trying to be a kiljoy. Just make sure you really know what you need.