Hi there alenppc and welcome to the forum and as you mentioned it is full of people with a passion for their Amiga's
There are still people who want to build their 1200's etc into a tower, maybe if its in fair to good condition you could sell or dispose of the case you have on here or Amibay as there are members from America and Canada too (I know Amibay has anyway). Like you I prefer the original case for a 1200 but for others the chance to expand the 1200 is what floats their boat and cases are hard to find
All the best,
Allen