I'm contemplating selling my Millett Hybrid headphone amp with matching Cross clone (crossfeed). I've got around $275 invested in building them FWIW, not including any labor time or such of course. This is the amp Akhilesh listened to at GPAF.

Specs include:

original group buy board from DIY forums
opa551 buffers
Raytheon 12FK6 tubes
Kiwame resistors (output still has a metal film in it, but have Kiwames for them)
Cerafines on the output caps
Wima film caps
TREAD regulated with wallwart
Alps Blue Velvet pot
Neutrik locking jack
bamboo/zebrawood/aluminum casing
Alps Rko97 pot/switch combo as the power switch.
There are tube sockets soldered to the board as well as the ones mounted to the aluminum strip if you would like to put a clear top on it.

Cross clone is air wired -it looks a tad messy I know
Jan's recommended Lorlin switches
Stackpole and Radioshack carbon film resistors
Wima film caps
on/off/on switch

Here's the amp with the Cross together.

Here's the inside of the Cross clone. Told you it looks somewhat messy! The Millett is much neater and is on a PCB.