Vintage AMT Kenworth K-123 Cabover Truck Model Kit T520

This is a great vintage AMT Model Kit. It is the Kenworth K-123 Cabover Semi Truck. It is an 1/25 scale model. The kit has been started to be put together. The engine has been started and some tires have been put on rims. A couple bags have been opened but I cannot tell for sure if anything is missing. It is not dated, but I believe this is probably from the '70s. It does come with the instructions and original box which is in bad condition, the decals are missing.