Mowbz
Fish Herder
Please do not put clown loaches in your tank.
Who mentioned these?

I dont think the dwarf loaches are going to be possible really. To have group large eneough for them to be happy could push you over the edge in terms of stocking. To get away with it, your going to need to have some serious filtration, and maybe some further advice on tank footprint, as if the loaches are pushing around the floor for snails, they're going to be all in the same space as the Corys.
Might be worth posting your tank footprint.