CFS2 to play BOB and Dambusters?

Hello,
I have not played CFS2 for years ( I am into Il-2 and Rowan's BOB ).
I am thinking of giving it another go, but I don't want to play the Pacific theatre, but would like to do the Battle of Britain and use the Dambusters Add on.
What do I need for this please, and where do i download from.
I have seen reports re Pactex scenery? Is it applicable?
Is the Gary Burns scenery required/desirable.?
Where do I get BOB planes, especially the 1% ones.
I have seen lists of ad ons - so many that I am a little confused. If someone who has got the best scenery etc for europe and plays BOB and European theatre etc would guide me , I would be much obliged.
Thank you.
P.S. Does CFS 2 work with TrackIR ?
I have not played CFS2 for years ( I am into Il-2 and Rowan's BOB ).
I am thinking of giving it another go, but I don't want to play the Pacific theatre, but would like to do the Battle of Britain and use the Dambusters Add on.
What do I need for this please, and where do i download from.
I have seen reports re Pactex scenery? Is it applicable?
Is the Gary Burns scenery required/desirable.?
Where do I get BOB planes, especially the 1% ones.
I have seen lists of ad ons - so many that I am a little confused. If someone who has got the best scenery etc for europe and plays BOB and European theatre etc would guide me , I would be much obliged.
Thank you.
P.S. Does CFS 2 work with TrackIR ?