Another resource for some of these investigations is the collection of recon photos at NCAP.
NCAP aerial recon photos.
https://ncap.org.uk/
I took a look at what is available and there are about 7 photos of the Lulsdorf area, all taken before 1945. You mention you have already seen such photos, so this may not be of much help.
There are two July 1943 photos which show the town pretty well. I have not seen the full size pictures but these are the links to the “thumbnails”. I don’t know what the cost is for the full size image or whether the cost is worth it. What I think you get even from these thumbnails (which you can "snip" and enlarge a little on your computer) is a better idea of the size of the town in the 1940s. First click the "download" option to get the thumbnail by itself, then enlarge the resulting thumbnail a little on the screen and then "snip" it to a PNG image file which you can save and enlarge a little more.
https://ncap.org.uk/frame/6-1-6-1-35?pos=3
https://ncap.org.uk/frame/6-1-6-1-34?pos=2
The BG flew two missions on April 11. These reports can be ordered from AFHRA.
http://airforcehistoryindex.org/data/000/083/031.xml
http://airforcehistoryindex.org/data/000/083/030.xml
I think both of these may be the on same CD (with lots of other things so you are "hopefully" only ordering one CD).