It is a question or a statement?
what is the purpose of your post?
I think you can safely delete, create, change the file system, delete and create again, you can even format, nothing can damage (if you won't try to delete other partitions, besides p14 and p15), you can bring all the original state, if you remember about it
procedure is described in great detail, but the steps are not really so much
This ROM is worth to try it.
Yeah! This ROM is worth to try.
I just need some enough free time for repartitioning and flashing. And for SURE I'll try it!