Well, I have no clue about '72 International Scouts per se, but some general things I would keep in mind when buying a car of that age are:
- you might want to think about having the seatbelts replaced. I would not be comfortable with original seatbelts, almost 40 years old. I think the general guideline is 10-15 years but don't quote me on that. I'd get them replaced by a reputable dealer. A lap belt install would be fine RFing then.
- Is your 3 year old FFing yet? When he does, you'll need the top tether anchors installed too. Is there a dealer that will service this vehicle?
What do you mean by seatbelt "over the hooks" of the radian?