All 18 farms

All farms with plot, output, price, income per hour and payback time

Compare	Plan	Farm	Plot	Makes per hour	Price	Per hour	Pays back in
		Slab Crafter	48 × 23	10.8M slabs	$200M	$48.6M	4.1 h
		Dried Kelp Block Base	56 × 50	160K dried kelp blocks	$750M	$108M	6.9 h
		1000 Smoker Kelp Farm	40 × 55	80,000 dried kelp blocks	$500M	$54.2M	9.2 h
		2000 Smoker Kelp Farm	81 × 55	160K dried kelp blocks	$1B	$108M	9.2 h
		Charcoal-Producing Kelp Block Farm	66 × 76	134K dried kelp blocks	$1.2B	$91.3M	13.1 h
		Sweet Berry Farm	29 × 8	6.8M sweet berries	$800M	$60M	13.3 h
		Lever Crafter Base	32 × 12	1.44M levers	$100M	$5.76M	17.4 h
		Mauschu v10	46 × 59	288K dried kelp blocks	$1.5B	$72M	20.8 h
		Advanced Kelp Farm	15 × 40	86,400 dried kelp blocks	$500M	$21.6M	23.1 h
		Intermediate Kelp Farm	15 × 40	31,680 dried kelp blocks	$200M	$7.92M	25.3 h
		Beginner Kelp Farm	9 × 26	7,200 dried kelp blocks	$50M	$1.8M	27.8 h
		Snow Farm	30 × 25	225K snow	$100M	$2.03M	2.1 days
		Intermediate Basalt Farm	78 × 15	565K basalt	$200M	$3.96M	2.1 days
		Advanced Basalt Farm	83 × 80	2.83M basalt	$1B	$19.8M	2.1 days
		Spruce Tree Farm	16 × 13	50,000 spruce logs	$250M	$4.79M	2.2 days
		Beginner Basalt Farm	15 × 15	113K basalt	$50M	$791K	2.6 days
		500 Furnace Charcoal Farm	46 × 55	158K charcoal	$500M	$7.31M	2.8 days
		Stone Slab Farm	34 × 58	576K stone slabs	$500M	$4M	5.2 days

The seven farms that trade on the market use your market prices. Everything else uses fixed /sell values. Tick two or three farms to compare them.