The curved end neck goes in the straight pocket, leaving some gaps, as said above. You also get the non-Tele headstock, which is a drag on the looks.
I've been watching this item on the 'bay for a little while: http://www.ebay.com/itm/360545050863...84.m1423.l2649
I have the VM Precision TB and this should go straight into the Classic Vibe. IIRC, this neck is less vintage looking with a very satin, untinted finish compared to the CV.
A few days ago, the seller dropped $15 off the price and still got no bites so you could try an offer...