I can only advice you to have a walk around a couple of garage sales and tech dumpsters (you know, the tech recycling part of your city's disposal service).
In the past I found true marvellous pieces at garage sales for only a couple of euros. If you ask your neighbours if they have an old TV or computer screen in their attic they want to get rid of, you'll get tons of them for free or a couple of quid (heck if you carry it out yourself it's often free). I also did this loads of times, it really pays off. Dumpster diving isn't my favourite activity, but I can't believe what some people throw away at recycling centres. In the past I found DJ mixing sets, >12inch speakers, more TVs than I can carry home with me, old LP players, wooden stereos and radios.. the list goes on forever!
One person's trash is another person's treasure