Just replaced that pipe on mine. Garage damaged the pipe whilst replacing the rad and condenser whilst doing the belts as they looked like the corroded horror above. They had JB welded it and then it leaked.
Bumper comes off easy, follow a guide on here or YouTube. Unbolt slam panel (easy).
Long extension and female torx socket to unbolt pipe from the dryer canister. Pig to get at. I replaced the dryer (22 quid of ebay) pig to get at but the ally was corroded around the orings seals. Pipe comes away easy, but the new aircon orings were hard to source. Go to garage that does lots of aircon work and get them matched. They are special green ones.
Fitting the dryer was a fiddle and refitting the two pipes with orings to the dryer was a blind assembly!
The top connection near the bulkhead was a doddle,
Regas at garage after leak check and pray.
Mines great now.