You don't need to take the bumper off .only the rear towing eye .
Who told you that about bumper removal .i did mine and did not remove any thing only the towing eye .
No jack needed only socket set a ring spanner it will only take about 1 1/2 hours
Wow, didn't realise it was that easy.
I watched a Zafira towbar fitting on youtube and they removed the bumper.
My wife says that I never listen or something like that !
2.2 diesel Diamond 63. Swift Challenger 580