I actually have an Altairduino kit sitting in my closet, waiting for me to get around to building it. :-) So far, these are the only three kits I'm aware of.

I actually have an Altairduino kit sitting in my closet, waiting for me to get around to building it. :-) So far, these are the only three kits I'm aware of. At VCF-West for the past year or two, the Computer History Museum (in Mountain View, CA) has been showing off a similar project they've been working on with an IBM 1620 Jr front panel. However, that's definitely not something you'd make a kit out of. But, as part of it, they've figured out how to convert a modern'ish electronic typewriter into a teletype.