I found a website called Mecca and it has a huge repository of Legos right in the web browser. If you had your lego Manuals you could build a virtual version.
Best of all, after you create a lego scene in their web browser, you can export to blender. A lot of models have scans of the textures too. Like the space lego symbols and the landing pad. Just awesome.
I composed some of the ones I actually had as a kid into this Scene. Nostalgia.