I am merely forwarding photos I was authorised to share for posterity, CC0.
Unit

Motherboard gallery

The two chips on the bottom left are a PAL16V8 and a 74LS74A. U17 is either a MSM5205 or MSM6585.
Embedded cartridge

In theory, it should be possible to have the ADPCM decoder on the cartridge board and have it work on any regular Famicom console. Ramar must have had plans to retail more unique games only compatible with their console.
Hardware recording