Reiner,
Welcome to Deep Sky Forum. This is an awesome observing report. Thanks for sharing it. I wasn't aware of the Eridanus Loop. I'm going to add it to my observing list and give it a try with my 15" Obsession. Just need for the temperatures to warm up some and for the clouds to part.
Hope you have reports on other off-the-beaten path objects that you'll share on DSF.
Clear skies,
Mark