RAW files are needed for the SPS dumping tools if I'm able to process them. The Kyroflux ones could be done by the SPS team but they're so busy I fear it'd just be more delays! I can tell pretty quickly if they're unmodified so if people start uploading them, I'll process as quickly as I can.
I have no way of telling which disks are plain ADFs and which are custom format/copy protected without actually getting hold of the disks. I know some which definitely are non AmigaDOS but there's hundreds of disks out there.
My collection sadly has a lot of modified disks as back in the day I compressed some of the files on the disk or replaced whole disks with cracks hence a fair number of mine are no good for preservation
Each magazine on AMR has a coverdisk index (where known) which at least lists what's on the disks. eg.
Amiga Format coverdisks,
Amiga Power coverdisks,
CU Amiga coverdisks etc...