Just grow grapevines, have wine, spirit and grape seed oil.
Fertile soil is the best thing to have!
If you grow your vines well and...live in a fruit fly free state (Try saying that after a six pack of coopers stout) like SA bogan, you can easily produce 60 kilos of grapes per vine once the vine is mature...4 years. From each kilo of grapes, you'll easily make 1/2 a litre of wine and...if you know what you are doing, you can have a alcohol resistant strain of yeast that will allow you to produce wine of about 16 - 18% which you can distill to produce good spirit.
Then, if you know your quercus (Oak tree) varieties, you can add oak chips to give your spirit or wine a decent flavour.
You don't need oak casks to make good spirit or wine, just knowledge of how much oak chip to add to your wine.

If you can work-out the surface area of an oak barrel, you can come close to knowing how much chip to add to your wine.
It's just surface area, plus time, and a taste now and then of your brew.
Edit!
PS
If you distill wine to make spirit make sure you do so at the correct temperature, otherwise "you" will go blind!
Fertile soil is the best thing to have!
If you grow your vines well and...live in a fruit fly free state (Try saying that after a six pack of coopers stout) like SA bogan, you can easily produce 60 kilos of grapes per vine once the vine is mature...4 years. From each kilo of grapes, you'll easily make 1/2 a litre of wine and...if you know what you are doing, you can have a alcohol resistant strain of yeast that will allow you to produce wine of about 16 - 18% which you can distill to produce good spirit.
Then, if you know your quercus (Oak tree) varieties, you can add oak chips to give your spirit or wine a decent flavour.
You don't need oak casks to make good spirit or wine, just knowledge of how much oak chip to add to your wine.
If you can work-out the surface area of an oak barrel, you can come close to knowing how much chip to add to your wine.
It's just surface area, plus time, and a taste now and then of your brew.
Edit!
PS
If you distill wine to make spirit make sure you do so at the correct temperature, otherwise "you" will go blind!