Looking for Heathkit TV (wtb)

Hello,

I'm looking to learn about TVs and video -- I've electronics experience but not previous TV exp -- and came across a 1974 Heathkit GR-300 19" inline gun color chassis only -- basically just a parts unit -- and manuals. I'm very far from a working unit right now.

Although I don't know if there are better sets out there for learning, it seems the GR-300 is ideal -- excellent manuals giving pretty much a full education on TV theory and the set itself. The Heathkit ET-4001 course would also be nice.

If anyone knows where I can buy a GR-300, or has other suggestions, I'd love to hear your advice.

Thanks
John Singleton
Rockville, MD