Try this one http://www.mediafire.com/file/uifvbior6liwcxz/ArcherC2V1_tp_recovery.zip/file
What I did:
- Extract bootloader from Orange firmware from your link
- Append the bootloader with openwrt 19.07.2 for mr200
Have you read the link that I mentioned?
BTW I am using the same bootloader on my device with the same method and it works