Sears used to offer a guitar and amp/case combination back in the 50s and 60s. Lots of folks had them, and you can still find them around. I remember them well.
They had a sound a lot like a bad table radio, and were utterly useless in a band context. They used car radio speakers. Awfulness in a suitcase. Acoustic guitars were a much better alternative.
Great idea if you want some kind of curio, I suppose, but not something worth investing heavily in.