As far as I know, yes, yes, and yes. I followed the original schematic and only changed the op-amp and the mosfet's. It should work the same as the original. Assuming you have read the rest of this thread, you should already know that the MOSFET's presented a problem because they are wired incorrectly in the Eagle symbol itself - not because I made a mistake. Just check the pinout of your mosfet's and "force wire" them. (ie. hook up one pin in the schematic file, then check the board file to see if it is correct. If it is not, note which pin it is, and repeat for the other pins.) I assure you that if you build it as shown, it will work. You may want to tweak the layout, but other than the mosfet problem, it works flawlessly. Good luck!!
Computerman29
Added after 11 minutes:
Here is a link to my original thread.
Go about half-way down on the first page. Download the corrected Schematic and Board files. The schematic appears to be wrong, but I assure you it will work if built as shown with the same parts.
Computerman29