Cut a hole in the inner wing to get at the belt tensioner?

[Mighty306]

I removed my air con pump & went to a manual tensioner set-up a few months ago.  Getting to the automatic tensioner wasn't the issue really, using very standard tools.  I found the idler (which is located where the manual tensioner subsequently goes on the non-AC set-up) to be more of a challenge.  You definitely can't put a hole there tho because it's by the engine mount cradle.  Not a problem for you if you're convinced the idler is OK though.

If I was closer I'd offer to give you a hand with it.  Have you got a reasonably decent set of tools?