What's the point?
Once you have bought most of the equipment that's suits your particular gaming style there is little need for parts or GenMat for that matter.
I mean is the Chimera ever going to finally evolve? Of course not, that would technically mean the end of the game. That is if you are sticking to the storyline.
Synthite is another matter though. It's pretty much the main thing you need. And yet there is so little of it. I have an outpost running at 8.1 kills per raid and I struggle to get enough synthite to keep it running. I'm more of a builder than a raider but I raid because I have to. I also work for a living and can't put in the hours to raid whereas I can, over time, build a decent outpost and enjoy watching people getting mullered by it.
Please recognise that your very good game attracts two types of player, the murderous Minecraft builder types and the 'I can defeat any trap you throw at me' type. The builders need the tools to make better traps for the raiders as much as the raiders need the builders to have the tools to challenge them. If like me, you look at an expended outpost with dread and think 'Crap, I have to raid now to get enough synthite to prestige' then sooner or later you are going to lose your builders and your outposts with it. The raiders, with no new outposts, will follow shortly after.
Please lean into both builders and raiders by increasing the synthite drop or just increase reward for kills. And please design a plotline that gets rid of the Chimera. I mean we all know that it's never going to evolve completely at this rate so why not add some novelty and prove me wrong by having it evolve and then having to continue raiding and building because of some plot twist.
I love your game but it's becoming a grind due to the lack of Synthite especially when everyone has 10,000 parts and GenMat just sitting there. It has become painfully obvious that synthite is holding your game back.