I make my own wine, usually from scratch (literally, with blackberries!)
Hedgerow stuff is good, and free, and can be picked on a leisurely ride. Its a bit late for this year though.
Lots of fruits and vegetables can be used and a few pounds of them from the shops will make a decent wine. Kits can be purchased that have grape juice, yeast and nutrient in them and all that's needed is sugar and water.
As a basic starter kit, you will need a few demijohns, yeast, fermentation locks, tubing, campden tablets/sterilizing powder, a hydrometer, corks and a corker. (I save up the bottles from shop bought wines.)
Some wines need some pectolase to help them clear, but not all.
A quick search around the net will give you a price for Starter Kits.
I've always found it more rewarding making my own rather than the 'grape juice from a can' type. I've had some failures over the years, but not many.
At the moment, I have a gallon each of Elderberry, Blackberry, Carrot and Apple nearly ready for bottling
A gallon gives approximately 6 bottles of wine. I owe one bottle of the apple to a mate as he gave me the apples.
Hope that helps
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