I see that there's currently three lefty Mighty Mite P-bass necks available for $89.95US + $11US shipping here
http://cgi.ebay.com/LEFTY-PRECISION-P-B ... dZViewItem
I have NO association or knowledge of this seller
having used a couple Mighty Mite necks in the past, I have high marks for the value they bring at an incredibly affordable price. I definitely lean towards utilizing a MM neck before I grab for a Warmoth anytime a customer wants an assemble job on the cheap - but wants it to play like something significantly more expensive.
one of these necks could easily be added to the Fiesta Red T-bird body in the Fenderbird thread
all the best,
R