Back in '08 a different gamer created their version of Collinwood that was pretty well done - it even included Barn's portrait in the foyer. It's too bad, though, that now it looks like only members of the Web site that it's listed on can see it:
The Sims 2 is a fun little game from Electronic Arts that lets you control the lives of lots of little computer people. While looking through a few TS2-websites for Dark Shadows stuff, I stumbled upon (URL)
However, I seem to recall somehow saving either JPEG examples or the SIM itself. Heavens knows where any of that might be.
But when I get a chance I'll try to track it down.
At least I have an idea of when I saved it...