E60 Sport bumper repair

My wife caught the underside of our E60's bumper on a kerb on Friday night whilst parking it. This low speed incident caused a crack about 30mm long on the underside of the bumper (not visable from side) and also pushed it out of it's guide on the nearside where it supposed to sit flush with the wing. My question is do you think it could be repaired without the need for a new bumper (£500 for the part alone) and without removing it as it's fitted with PDC, fog lights and headlight cleaning. I'm pretty good at using a tool kit especially trying to keep my E30 on the road, but I'm just concerned with the complexities of dealing with these modern cars. I'll try at get a couple of photos which would obviously help.