You should visit DIY Audio. If I recall correctly, they have a XONO kit or guide to building one.
Best DIY Phono Pre?
I've got the Hagerman Bugle 2 right now and it's *outstanding*. I'm wondering whatelse is out there and what kind of success forum members have had going the DIY route. Hagerman has a tube DIY kit available now that was funded by a kickstarter campaign. Has anyone tried this? What about bottlehead? I'm sure I'm missing a few -- any guidance appreciated.