Need Help Finding Affordable Tube Amp Kits.

I'm thinking about building a tube amp from a kit.
I would like 50 wpc in a stereo or 2 mono blocks design.
Since I'm new to the "build your own" club I would like to hear from the members who took on the task of building there own tube amp. I'm open to suggestions to brand, design or anything else that might help.
Looking for a very good quality amp with excellent, detailed assembly instructions.
I can solder, read schamatics and have the patience of a saint at times.
I've been toying with rebulding a Dynaco 70 also.
Any advice/comments would be greatly appreciated.
Thanks, Rick.

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