Look for videos on youtube.
Basically to have it emulate a quarry and dig up everything just put it down, insert an ov/od scanner, attach a power source, apply redstone signal and wait. Without overclockers its really slow and it does NOT skip air blocks so you might need to wait a while before it starts digging. If you change anything in the setup you need to re-apply redstone to apply the changes.
In test world I had it run with 12 overclockers and it was about as fast as max speed quarry. I think it used something close to 2k EU/t but I didn't really check it.
Well, I mostly use fillers, for diggung holes, and for mining recourses the miner, but jesus christ, 2k EU/t?! And it should be portable? It's like 10k EU in a second, what am I supposed to use it with?!