There is a big problem with the way Chimera currently handles resource stocks. They extend max resources by building Outposts which cost lots of Aluminum. But if you fill them up with rare earth, aluminum trucks will just stand there in queue and do nothing. You cannot build new outpost because you have no Aluminum to build it with. And Chimera has no units that cost only RE. It is a terrible magical circle! Even aluminum generating buildings stop working because of RE.
Chimera needs a way to extend its Max stocks with cash only or a Max stock building for RE only that is made with $ and not aluminum.
Add an upgrade to Outposts that costs 500 $ and expands its Max stock further. That upgrade can be done in addition to any of the 3 major upgrades Outposts have. This would only ask for one more icon and shortcut and you don't need to do any animation changes or additions to Outpost 3d model, just improve its max resource more, the exact number you can determine. This would be a quick fix for the stated problem above.
Yes you can still get into above problem if you upgraded all Outposts and still filled them up with RE but that will be less often than how it can happen now.