Daniel,
You have built the preamp and amp modules very well; I can see the work you've put into them.
I consider the asking price for this equipment very, very reasonable. Most of the hard work is now done, and done beautifully, and I can certainly vouch for the sound - I designed it all, and my heart bleeds for you selling it before completion.
Folks, an exceptional deal, go for it!
Cheers,
Hugh