Haha cool!
I'm really bad at writing lyrics (got the name "Gates of Cadaver" from a "black metal band name generator" on the internet and thought it sounded cool, yet hilarous) so yeah, you'll have free reign but it would be cool if I could contribute with some suggestions if I have any. I don't care too much about lyrical content either, not too crazy about nazi stuff though. =)
My priority is finding rythmic balance, atmosphere and dynamics in the song so the vocal arrangements is more improtant to me than the lyrics.
It would be really cool if works out!
Do you have a recording (of your voice) I could listen to?