Plan 1 Having watched three different day time TV programs recently there is obviously a lot of money to be made by anyone with DIY skills. The programs fall into three groups: Find junk, apply boot polish or WD40 to shine it up or paint it badly to give the shabby chic look . Find junk, spend hundreds to turn it into expensive junk. Find scrap, re-purpose into something else in a workshop with £ks of machinery and then pretend that the one week of your time doesn't cost anything.
The only flaw in the plan seems to be that I don't know anyone willing to buy expensive crap.
Plan 2 Buy an abandoned storage unit for lots of money, value the second hand junk you find at twice the retail price of equivalent new items and declare a large profit - at the same time ignoring transport costs or the price of a skip.