I'm downloading via the browser because the GOG downloader is blocked (I think it's the initial request for the static-ip that's getting blocked).
So can someone give me the MD5 hash for setup_mdk.exe and setup_mdk_2.exe ? (I can verify the zip files for the wallpapers, soundtrack, etc. using the internal 'verify').

If the installers have been updated in the last year, these will be out of date.
91080ED79082CC511ECCC4E5E5A547C3 *setup_mdk.exe
61ECAF66460D1B75637B0230861057F2 *setup_mdk_2.exe

Thanks. setup_mdk.exe verified.
Waiting for mdk2 to finish downloading.
(Should've posted as a question, for reponse rep, sry.)

MDK2 setup file gives a different MD5 hash:
069001bc57bd43f28469678af6e1fdbc *setup_mdk_2.exe
but the integrity check at the start of installation didn't give an error, so probably a different version