Have a word with Les Wolstenholm owner of Avondale Audio
http://avondaleaudio.com/amplifier-modules/ phone number at the bottom of the page
His NCC200, NCC220, NCC300 amplifiers are excellent and well and truly tried and tested by many over on PFM, they have given me a lot of pleasure over the years and my NCC-300 mono blocks still remain as my best amplifiers.
Les doesent advertise kits as such but will certainly supply you with the building blocks for a great amplifier
My current NCC-300 Voyagers
IMG_3318 by Alan Towell, on Flickr
Alan
Turntable - Garrard 401/Jelco 750L/Ortofon Kontrapunkt B, Pioneer PLC 590, Micro Sieki MA505 , Denon DL103R - DIY Paradise Phono stage - Reel 2 Reel Studer A810, Otari MX55,Tascam BR20, Revox A77, B77, PR99, TEAC X1000 & 3440, Digital HTPC / Young Dac - Preamp - DIY B4, 821, Power Amp's DIY Avondale NCC300 Mono Block, Speakers Wilmslow Kit Volt BM220.8 / Scanspeak D2905/9500