I would want no part of cleaning out muck. I would think a huge bucket on a backhoe would be ideal. Myself have just been moving topsoil n clay. A end dump truck would be handy. I might be calling it the wrong thing. One that is soild steel and u-shaped. Normally they are shaped lower end at cab I believe. So you keep the muck from running out the back.

The people who say I can't do it can just sit the @^#% down and watch me. Friends call me Rusto I also subscribe to pond boss mag. http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=504716#Post504716