Anyone that has done this could tell me what tools would I need? I need to get a bumper off without having to carry 200lbs of tools or missing the last socket that I needed to get it out.
Any info will be greatly appreciated..

If I recall correctly, all you'll need is a 10mm and possibly a 12mm socket to undo the bolts on the reinforcement bar.

non of those 8 point allens or something weird like that?

Great thing about the W201 and W124 chassis cars . . . You can pretty much "de-bone" 95% of the car with hand tools from a basic metric tool kit.

two bolts from underneath, 2 from inside the trunk. super SUPER easy.

I want to say 13 or 14mm

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1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT

Yeah, I could do maybe half the car with my little MB(12mm and 13mm I think) wrench. That is until I lost it.