Rockyroad,
please keep us informed of the progress as you proceed. (Photos?)
I am starting to work on a rake in combination with the FEL to pick up acorns from Live oak Trees.
Sounds like we should end up with a simular product.
The rake on mine is to loosen the acorns up out of the grass and I think your idea of a lighter, larger bucket might be a great improvement on my project.
I am posted under attachments (started as a information request) and I will post photos as I work on mine.
Good luck to both of us.
JimC