I just sent 50% deposit to Classic Aero also for my interior. It cost way more than my initial thinking. But I've got $90k hard costs into this RV-7A including engine, prop, panel, paint, etc so why cheap out on the interior? My wife says make it nice!!!! Jeremiah has been great to work with getting it planned. He sent me swatches of all the material colors.
It is at least a 3 months flow time. They are busy. Order early.