Thats a REALLY good price considering I just got done rebuilding my turbo and had it ceramic coated, and I think I got a good deal on it. Cost me $340 for a new from Garrett CHRA, and another $40 for the new bolts and the comp housing gasket, and $150 for the coating of the entire turbo housings.
Total of $530, but I've got all new stuff in mine, nothing is reused old stuff. But I'd say thats an amazing deal if they know what they're doing.