List of undumped MSX software (PLEASE HELP!)

hello, (un)fortunately I own hundreds of tapes, so it takes much time to find Thunderbirds.

I know Daiva Story 5 - The Cup of Soma in the "Previously only had bad dumps" list used to be considered so rare to the point its existence was disputed. Was it known it's included in MSX FAN Disk Magazine #23? 1) Prepare a blank disk and call it the Target disk). 2) Start Disk 1, select the Oldies Daiva menu and hit SPACE twice. 3) Insert the Target disk and hit SPACE. 4) Hit SPACE again. 5) Insert Disk 2 and hit SPACE. 5) Files are read out. When it's done, insert the Target disk and hit SPACE. 6) Files are written. When it's done, insert Disk 2 and hit SPACE. 7) Repeat 5) and 6) until all files are written. Hit SPACE with the Target disk in. 8) Hit SPACE again to start extracting files. 9) When prompted to Hit [SPACE] key to reboot, do so to start the game. The Target disk is now the Daiva disk.

Was the originally released Daiva 5 protected? If no I don't understand why it was considered rare/undumpable given it's quite common and cheap on YAJ.

I don't think the disk has a copy protection (some T&E Soft games have one), because my version came with a copy of the game on another disk so you don't need to use the original disk.

I have seen screenshots of MSX2 Sim City. Is there a dump of it in some form? Perhaps a demo version? Who made it anyway?