Ok someone stripped all the decals off the tunnel. The front frame has full gussets so it is definitely an early 700/7000 or earlier model frame and has the sunstrand hydro pump that was introduced on the 700/7000 series. And the hood off an early 7000, 3400 or 3300 series. It is 98% consistant with Pre 1977 model 7000...someone had just bee paying with the dacals.
The guy i got it from was the origional owner and he said he never changed the decals. but he did take the model tag off. It may be in the parts box he gave me, i havent looked yet.