It is five years now since we moved from our 'rural idyll' in Leicestershire back to civilisation from being oil dependent, with a 300 ltr tank, minimum orde, which at the time hovered aroundr £500, I have no idea how much this would be today = we were totally at the mercy of the oil supplier, and once waited 10 days for a new delivery.
We imagined logs being cheap and plentiful, Ha!
We had a coal/log stockist, a builders merchants with set delivery days. They do not come out specially.
Servicing of boiler and Aga also remember, and a degree in aerodynamics to make the most of the Aga
and special metal brushes to scrub and keep it clean.
If you are organised and can stock pile wood and coal, and have a gauge on the tank so that you can see the oil level,
a sturdy lock and a vicious dog or a gander, and an electric cooker/shower/towel rail/open fire/heavy curtains/thick carpets/electric blankets/immersion heater and a stoical disposition then you will be fine, go for it.