Made a trip to the steel yard, and was offered the friend price if I bought from the scrap pile outside. Drew this up....
I'm thinking 12" timbers underneath. The 2" layer is a 2 by 24 round piece of mild. The 14 by 7 is round, and the top 6.5 is round. Total weight minus timbers is the numbers on the right, roughly 650.
Will this be better, worse, or equal to a similar weight of round stock?