Fine azz looking under the hood area!
That duct tape barrier is a good idea, also...I have used a paper towel tube 'drain' a few times, but oil change on E53s is a mess.
Our old 2001 X5 is still asleep in our Mtn Home garage, and dunno when we will migrate back there this Spring.
Couple cars with us here at the EscapeWinterHouse, but it is already AfricaHot here and doing even simple cleaning stuff on the ol' 2002 VetteVert or my CEO's '17 X1 is like a trip to the steam room, esp for this almost 73 yr old Geezer.
I did repair the oil level sensor wire on my '02 Vette, but that was a PIA due to zip ground clearance.
If it wasn't for both of us chasing the ball ~3 days a week, (separate groups), here at our SW FL club, my wife would have smothered me while sleeping, by now.
Stay safe everyone!
GL, mD