E30 Zone

Guys, whilst assembling my head back on i have dropped a nut (i know i know) and its gone down the breather pipe from the head to the block, the big long black one, and i think this goes to the sump.
Can i just drain the oil and remove the sump bolts to get the nut out, or is it a little harder, please help.

many thanks

Do you have an oil LEVEL light on this car? THe sensor for this is in the top of the sump, under the alternator.
Take off the air filter assembly, the alternator, and the sensor, and have a fish around with a magnet.

Yep just tried, seems to be a baffel in the way sadly looks like i'll be lifting the engine up not going to well this isn't lol.