[Scrawns]

the problem with your search is two things:
1. you guys already have an exact type of voice in mind that eliminates a lot of people who don't have that same type.
2. you are looking for a style of vocals that a lot of other bands have, which takes away from what could set you guys apart.

You really should just find someone who is an excellent singer who has an enjoyable voice, but also can carry that voice both in the studio and more importantly in a live show.