Buying Lasting, established sites earning $100-$200 in AdSense

I am looking to buy a serious, established website that generates $100-$200 in AdSense and I am willing to pay up to 12 monthly revenues for the site. This site is supposed to add up to my moms pension and must last for years to come so I am going to be extremely picky and suspicious. Expect it. The niche must be something decent and respectful. No porn/gambling/games/anime and similar niches will be considered.

Health education is a good niche, IT related informational portals are also high on my list. I am willing to pay only via escrow service after I have had access to the site for a few days in order to check the traffic sources and revenue amount.

In your PMs send at least the URL, traffic stats and revenue for the last 6 months.

Once again only serious offers!