Help. Oil pressure relief spring & bearing

I was planning to drain the oil and along with the oil drain plug inadvertently removed the plug for the oil pressure regulator valve.

Now I have pressure spring and ball (see pic) from the crankcase and no idea how/where to put it back in. Classic case of oil pan full of oil and a few parts. Perhaps I'm overthinking, perhaps not?

Has anyone done the same thing and can direct me to the correct procedure installing the oil pressure regular valve?

Checking the service manual (page 113) its says 'install the ball, pressure spring and mount and tighten plug. Simples. However I fear the ball and spring will just swim around inside the crank case until it nukes my motor (and I like my Berg, so I don't want to do that).

What I have arrived at is; the oil drain plug with the magnet inserts horizontally into the case next to the oil screen, see first picture. The ball and pressure spring insert vertically UNDER the engine.

Ive attached pictures that will help describe my predicament. FYI: I always like a good understanding of what I'm doing and why (universal cause and effect).

Thanks. Its been a worthwhile process accidentally removing the pressure regulator - getting to know the lubrication system and serviceable parts. Banjo bolts and screen plug all clean and reinstalled now. Clean oil, clean air filters, clean fuel - what more could a Husaberg want?