The shiny shellder works.
The GMax Charizard & corviknight gives the unsupported file type/size error
The GMax drednaw gives the "binary not compatible with save file. Current SAV generation: 8" error
EDIT: The sellder file is 1 KB. The drednaw file is 65 KB. THe Charizard and corviknight files are 68 KB. Issue with this?
EDIT 2: NVM, figured out why. I wasn't downloading the files initially, I was doing "save the link as" in the folder, which I shouldn't do at all.
Sorry for the trouble, again thanks for this collection!