Don't know if a 1994 Bianchi really needs that level of revitalization.

A more modern, gently-used frame and a piecemeal 2010-2014 NOS Chorus 11 gruppo will get you in the door for probably less than a full 2015 gruppo. I found a 2004 carbon Reparto Corse frame and fork for $375 on eBay this year.

Deals are everywhere. Find some.

The differences between 2014 and 2015 Chorus 11 are far, far less than other technological changes the Bianchi has missed like 9 speed, 10 speed, Ultra-Shift, Ultra Torque, three new chain standards, new BB standards, etc.