Bottlehead is great for low powered tube amps but if you need more power and want to build it yourself then I would suggest these:
http://classdaudio.com/amplifier-kits-1/complete-amplifiers-kits.html
I have the SDS-258 and for the money it's a steal.
edit: oops, I forgot you already mentioned you were considering them.
http://classdaudio.com/amplifier-kits-1/complete-amplifiers-kits.html
I have the SDS-258 and for the money it's a steal.
edit: oops, I forgot you already mentioned you were considering them.