Yep, I had to remove my gearbox when I bought my 182 a few months back, and it took a week thanks to the rain halting progress! Now I have to remove it again because I've got an awful judder and need to get to the bottom of it (flywheel was skimmed, no more deck on it and the clutch kit was reconditioned). I wish I had the funds to rebuild the engine now, because removing the engine/box together would be perfect and it does smoke a bit with the 5W40 I've put in.Its when you take the engine out one day... and it only take an hour and a half and you think back to removing the gearbox and just think 'why didn't I just remove the engine'.
HTH