I have a similar sound on tickover - upto about 1500rpm. I've always thought it was the engine cover as I have some grommets missing. I've just looked and the tensioner is rattling about a fair bit. The belt leading upto the alternator vibrates but it looks to be off the tensioner. Do you think it's the alternator pulley or tensioner. I've just made a vid if that would help.
I have a little bit of flicker mainly when I lift the clutch without revs. I sometimes get heavy steering too which I've read could be related too. Another thing I have is a squeak when I start the car which I assumed was the starter. I've read that could also be the clutch pulley too? My vids currently processing on YouTube.