This is from the VMR website,
http://www.vmrintl.com/ the columns are kind of shifted, but you can easily figure them out. These figures are probably a little high (as most of these type of web sites are) but it'll give you an idea. Oh, they say when the vehicle is incomplete (this one is missing the front seat) to take off 40 to 50% of the number 5 value! So it looks like you're talking about a car with a value of about $400 ($925 -15%, -50%)
1950 FORD DELUXE 239-100hp (8cyl-2V) 3M #5 #4 #3 #2 #1 2dr Sedan 800 2975 6100 8900 12300 Business Coupe 2dr Sedan 925 3400 6975 10200 14075 4dr Sedan 650 2375 4875 7125 9600
Add: Overdrive 3%
Deduct: 226-95hp (6cyl-1V) -15%
Sounds like maybe your Dad could have some fun with it!