I have the original W&B graphics for the 68 M20F, which does NOT include the envelope graph using STATION, only the envelope graph using MOMENT/1000. It DOES have the "loading computation graph" with station numbers as shown below. Regardless, here are the "factory" numbers, (pretty much as shown above in prior posts), but with a little more detail on seat location.
Note: The fore and aft seat locations are DIFFERENT on different models (check other posts/ model graphics), even with the same fuselage (F vs J, for instance). Someone mentioned that Mooney must have moved/shortened/lengthened the seat rails for different models... must be true.
Here are the numbers for a '68 M20F:
Oil: -11.5
Front seats, foreward position: 31.5
Front seats, aft position: 39
Fuel: 48.43
Rear seats, upright position: 70.7
Rear seats, reclined position: 75.7
Baggage: 95.5
Interestingly, the hat rack station is NOT shown on the graphic, but is included on the factory sample calculations... and is 119 in.
I would also suggest that you get an ACTUAL weight and balance for your empty aircraft using scales. I am going to get mine done in the next few days... I have found an FBO that has a set. I have looked through the logbooks on this bird and the additions and subtractions over the years are sometimes somewhat "casual". The "claimed" empty weight is now 1713 lb at 44.06in, or 75,490 moment... we shall see! It looks like it has been almost 45 years since this 'ol mooney was actually, really weighed.