Headless hardware can be very expensive, but don't be tempted to go for the Chinese "Overlord of Music" kit because it is utterly awful.
Also two "ick"s for me are:
Headless basses with normal tuners at the other end (eg. the Kramer one) - what's the point of that then?
Headless bases with a headstock anyway - you might as well just have the normal tuners in the first place.
I've done two headless projects from parts:
The Rickenberger (based on a Steinberger Spirit) - yep, those are real Ric pickups, Treble surround, and knobs; I made the pickguard.
A doubleneck whose hardware had failed and electrics were rubbish, so I replaced them (guitar pickups still pending fitting).
The guitar's bridge is from a chap in Ireland called Matthew James Bean; it cost more than the entire rest of the instrument.