You wouldn't have to "scoop" with it if you had a FEL. You could probably transport over twice as much as you could just using your FEL bucket. The tricky part is flipping the dirt, snow etc over your head to catch it in the rear bucket... ;-)
We used to have a similar homemade unit for the N9. Just used a chain for the top link. When we wanted to dump we lowered to the ground so the chain was loose, unhooked the chain then lifted the 2ph and drove ahead to spread the load.