About 1hr 15min from you. I am going to download mobile photo bucket and try to share some videos and larger pics. That might be enough to help you. I can also take specific pics if you PM me.
It works well, but I am putting some thought into it to determine if I can do anything to improve the paddles. If I trimmed back the ends by cutting off the U bolt ends, I could attach thick rubber which would not only wipe the bucket but it would give if a larger rock went through.. I don't have rubber like I would need so I will consider that if I come accross some that is stiff enough. I could also purchase a rounder aggregate which I think is readily available as that might make a huge improvement but I heard round stone does not make as hard a finished mix.
I have more concrete to do but I am about done for a couple months as I am taking vacation soon, and I need to disconnect the bucket to do some mowing and other chores.
Coupla suggestions for belting: Horse mats are about 5/8" thick, what cuts them best, from what I've heard is an abrasive chop saw blade, if you can stand the smell of burning rubber. Other sources would be industrial belting, hay baler belts, or old tires, if you want to do it on the cheap...
Pea gravel is round, but ain't as strong as #57 stone...
If you are pouring into foundation forms, or sonotubes, invest in a concrete vibrator, to get the air out...