As I am apparently completely incapable of focussing on one thing at a time, here is my venjetta conversion.
Whilst I like the classic valkyrie as a valkyrie, I've never been a huge fan of it as a fast attack gunship. This conversion is pretty much just the valkyrie with extra lascannons (baneblade sponsons + bastion heavy bolters) and an optional deathstrike nosecone. Took me a few attempts to get it right, hence the green stuff patching everywhere.