Help identifying Greco year and model

Just picked up this beautiful tobacco burst Greco. Sounds awesome and the fast neck feels great.

Some notes: - There's no serial number on the headstock. - Pots 504042 - Pick-ups serial numbers match, 171226

From my sleuth work and comparing models currently on eBay, I think it's a 1976/7 EB-700. However, could use an others opinions to help solve the riddle. Thx