Coming along nicely.
Which is your deep sump then? If it doesn't have a sump plug, how are you expected to change the oil? Mine has a sump plug. I can't believe they don't. Could it be an easy fix, by drilling, tapping and putting a sump plug in? Motorworks/Bins sell sump plugs with a magnet in the middle. Thread the drilled hole to suit.
Just an idea.
My sump extension is designed to be used with the existing OEM sump so you drain the oil through the drain plug in that , but as you have said if I wanted to bolt a bash plate direct to the sump extension and omit the OEM sump I would need to drill a drain hole in the extension piece assuming there was enough material to drill and tap into
Looking at the picture of your bike it looks like you have a similar set up with the existing OEM sump and a sump extension piece
https://www.teilehorbank.de/en/bmw-...uer-Oelwanne-oil-pan-distance-ring_18416.html
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