Oh, he'll want to fix some of the inherited bugs
"built from scratch in it's entirety"
Scammer: confirmed.
Time for a 'Blowing the lid off Vanillacoin' thread?

Also, I just re-read the OP and gmaxwell mentioned it being run through an auto-formatter rather than actually refactored by hand, which seems like even more deliberate deception to me. Not sure if that part is true though.