Long term planning, father/daughter first car build

I've got 2 daughters also. One grown, married, and about to be a parent herself. The other is 10. Neither has had much of an interest in cars, especially older ones. If my 10 year old wanted we would build something, but I would let her pick what she likes. As much as we want our kids to love a Plymouth, they may really like VW, or Jeeps, or pickups. If they aren't building something THEY have a heart for, they will lose interest and YOU will be building what you want.
And a first car should be a safe throwaway beater anyway.