Hyperloop

This is presumably my best guess.

If no, which epic should i get first?

Currently my epic research upgrades are:

Hold To Hatch: MAX

Epic Hatchery: MAX

Silo Capacity: MAX

Accounting Tricks: x5

Epic Int. Hatcheries: x4

Bust Unions: x6

Lab upgrade: x7

Epic Clucking: x1

Epic Multiplier: x11

Drone Rewards: x11

Video Doubler Time: x0

Internal Hatchery Calm: x4

Soul Food: x12

Prestige Bonus: x3

Epic Comfy Nests: x4

Transportation Lobbyists: x5

Int. Hatchery Sharing: x1

Nothing else.

Notes: I am doing a cashless run, so piggy bank or ANY type of methods that require real money will not be considered.