shay, i played around with this a little. i got better results with the settings from the first link when i mapped the cloud texture to color only and not to normals. will try some more later. can you post your latest blend please? also, the lighting set up makes a big difference!
just made a simple plane at the bottom.(flat plane)
block the light from the left and right with two more planes (they are not in the same location in the z axis)
well i tried to fix it
but when i made W->remove doubles
i had 240 doubles there ,
removing them makes the mesh really weird
and i must remove all doubles to make sure i don’t have any F-GON there
(see the blend file what i did so far ,and stooped cause of the doubles)
since its not organic ,it makes life more easier
u can model each part separate
and achieve maximum result
when focusing on one thing at a time
modeling them as objects make more sense (to me at least)
cause each one has a different material and different topology
see attached image for example
where u will see the red arrow means i was making it as a separate object
(you can join them latter when done ,(what i was not doing to keep minimum changed).)
i did remove all doubles and corrected some of the edges
i did a test and repeated the holes on top of stove and applied subsurf to it
with a 8 segments circle see pic
looks very good with 2 colors
but why i cannot get that on the stove top?
i redid the top with this new cirlce and see second pic
i get again some distoriosn in circle whis i that?
i did add an extra vertex per corner to reduce distorions on outside edges
but this does no change the distorions on the middle circles!