These are some pedals I haven't used in a while but they are all in perfect working order. I'm beating Reverb pricing on all of these!
Dunlop UV1SC Uni-Vibe Stereo Chorus:
This is a classic modulation pedal. Univibes go all the way back to the great Jimi Hendrix.
$90
Xotic BB Preamp:
A very versatile and responsive preamp.
a couple knobs have been filed down (by a previous owner) to expose the metal posts, but that does not affect the functionality of this pedal in any way. Controls include Gain, Volume, Treble, and Bass. Great as a boost/OD on it's own, or for pushing tube amps or other pedals to new heights.
$110
Radial Tonebone Headbone VT.
This pedal can switch between two tube guitar heads using one speaker cabinet.
Or you could also put a head on top of a combo and use the combo speaker(s) to switch between the combo and the head. It's a very robust and sophisticated piece designed to keep your amps safe and maintain the highest degree of tonal performance.
$240