I just flash a EMMC image whenever I flash my N9 and didn't have any problems.

You can find some images on archive.org
https://web.archive.org/web/*/nds2.fds-fire.nokia.com/*
Filter by "EMMC .bin"
The downloads my timeout sometimes, you have to be patient.
On How to flash an EMMC image: See here.

But I don't even know if its necessary to do activate maps.
I have an 991250C3_DFL61_HARMATTAN_30.2012.07-1.ALPS_EMMC_ALPS.bin lying around here. But with my lousy rural German internet speed it would take forever to upload.

Of course if somebody wants to archive it where other can access it, I would do so.