First of all big thanks to thread owner and all people who shared their valuable knowledge about these treasure hunt missions.
Sorry if this was asked before...
I accepted both Kha'ak Relict Collection and Ancients Relic Collection missions and have collected all needed things.
I exchanged Kha'ak Relict Collection for MK5 Shields and then I went to deliver Ancients Relic Collection... However, I got same offer as for Kha'ak collection: Mk5 Shields or money... I was not tempted to take ~10M credits so I decided to keep it for a while.
Can you exchange this for anything else but MK5 shields or is this the only reward in current version?
[EDIT] According to index page of this thread it is the only possible reward...
Shields (Needed: Kha'ak Relict Collection OR Ancients Relic Collection)