The super beetle was not put into production until 1971, there is no such vehicle as a 1964 super beetle.
I bought a 73 super beetle, sport bug and it was aprox 1800.00
decode vin 1973 Volkswagen beetle
A 1963 Volkswagen Super Beetle
1963 Volkswagen Super Beetle
1600cc carburated
.028"
The Super Beetle has a slightly longer body (front end) and more modern McPherson front suspension instead of the torsion tube type.
What you might need to know before buying a used 1972 Volkswagen Super Beetle is that the car is an antique and could require plenty of work to run smoothly. You might also want to know the history of the vehicle, whether or not it has ever been involved in an accident, and whether or not the motor and other parts are original.
They began production in 1970, and the first SuperBeetle was released in 1971.
Call a locksmith he can make you one on the spot.
Check with Sterling Storts Cars LLC, google it. I believe their slides are same as original VW. Cost about $50 plus shipping.
Figure $350 for a rebuilt unit, $100-150 to install.