hmmmm...
I bought my place 'cos I liked it.. the views, size etc and equally didn't have any real 'plan'.
Remember the following facts... the land will be there long after you're gone. it's been everything from volcanic sludge to an iceberg and a paleolithic forest. So what harm can you actually do.. unless you dig a mine?
Can you afford the loss? In other words..buying it with a need for it to repay you would create all sorts of concerns. Buying it with a wish to 'play' and no financial requirement.. well what's to lose? You can always sell it even if it makes a bit of a loss and have an experience to recount.
In my case there's no need to amke money off the land.. just as well 'cos maintaining it has cost me plenty (but then I have lot more land than you contemplate so tractors, implements etc all add to the cost)
For your small plot.. well these days i'd consider 0.8acre just a larger garden
- somewhere to grow a few spuds and beans. My bigger concern would be how much traffic the rights of way get on the larger plot - specially if you plan on any stock on it and can't see it from your house.
Buy it;; it'll probably grow in value anyway..