There's no value in a parts bass with mixed custom shop body and neck. The reason is Fender's custom shop is not production line of bolt on parts like their other lines. Fitting is done by hand, and the two matched parts... the original body and neck are gone. It's like buying a mixed parts Sadowsky.
Anybody who sells a mixed parts bass, and proclaiming it a custom shop is perpetuating a fraud. It's not custom whatsoever, even with a custom shop body from this one, and a custom shop neck from that one. Stratosphere is part of the fraud in this regard. Heck, they even put "Custom Shop" in their auction title on a body because it's a standard with custom shop pickups sticker on it.