At time of writing I am working on the Novo headphone amplifier kit. To be available as a full kit including case and power unit as per the ready made product, as a case inclusive kit less power unit, and as a PCB kit. All kits will be supplied with full instructions, tips and a "teach-in" on how it works.
Expected selling price of full kit to be £120 ex. VAT plus shipping. The no power supply and PCB only kits are price to be decided yet.
More info to follow at http://www.diy-audio-kits.com
Currently this site is in its infancy and is text only. It will soon be expanded.