$3K to spend on mining hardware

Hello, community.

I’m looking into getting more into mining and I have some funds I can disperse. I currently have the below.

Gaming rig 3080 full hash. Mining on Nicehash when not gaming.
CKB Box: Not much profit.
RAK v2 Helium miner: Profitably when it’s not offline.

Initial thought was to purchase 1000 Flux, purchase a mini pc on seeedstudio and spin up a Cumulus node but the rewards will probably to low. This would be a long-term investment.

Keep on the look out for cheap 2080ti’s and put together a GPU Flux mining rig.

Save the $3K and play “node” and DeFi game to cover to difference and get a KD Box?

What areas would you guys suggest to spend $3K? Home electricity is high at $.15 kWh.

Thank,

Jeremy