I downloaded some mods on the ModHub (PS4). I downloaded the FS19 Dahl Ranch map. I installed multiple "Government Subsidy" sign wich gives you 150k an hour. Fast forward 120x a couple of hours. Buy plot 6. Take whatever seeds, I took Barley. It's easier to fill your fertilizer and seeder if you have a Multi Filling Station (Mod). To get rid of the Barley, just use a Multi Selling Station (Mod). Took me a couple of hours.
Harvester: CR10.90 Revelation (Header: 3162 Draper 45FT), 4 of them, you can get more but it'll be tedious to empty them all.
Truck to empty the Haversters: RoadRunner with SB II 30/1070 trailer, 4 of them.
Cultivator: ST820 attached to a Quadtrac Series, 4 of them.
Sow + Seeder: Seed Hawk XL Toolbar 84FT with a Seed Hawk 980 Air Cart attached, 4 of them.
Fertilizer: Fertilizer Spreader 10.000 (Mod) or K165 with 6m speading unit, 4 of them.