option to pay with economics mod?

I can look into this.

Merged post

Implemented in v1.2.0.

Below is an example configuration that charges Economics balance for all chassis lengths.

{
  "ChassisCost": {
    "2sockets": {
      "Amount": 200,
      "UseEconomics": true
    },
    "3sockets": {
      "Amount": 300,
      "UseEconomics": true
    },
    "4sockets": {
      "Amount": 400,
      "UseEconomics": true
    }
  },
  "FuelAmount": 0,
  "EnableEffects": true,
  "SetOwner": false
}​