If you're looking for an active HP game check out
80smaraudersmod for all your 1980s needs. We have a small group of players with awesome characters, and are always looking for new collaborators. There's a wanted list
here. Arthur & Molly Weasley, Fabian Prewett, and Amelia Bones are all available.
Selfishly, I'd love Narcissa's one true female friend. I put down [NAME] Parkinson in the wanted list, but it could really be any snotty, traditional Pureblood lady. The people Narcissa trusts are few and far between, but this woman would definitely be in her inner circle, and the one person she tells (almost) everything to. You can comment on the dropbox
here if you want to discuss lines.