everyone, men and women, would rather have someone who has perfect whatever, than just looks like they do. As far as if they prefer conceler to baldness, it just depends how good it looks. Some people can get away with a shaved head, or a receding hair line, others can't. I don't think anyone here can say for sure until they see you before and without.
I think your main problem is you will attract women who only go for guys with perfect hair, and when they find out, they will dump you. You need to deliborately go a half step below them, but a step higher than what you could get with the scalp showing, and those ones will be more likely to stay with you. That will be tough work. If you are a 7.5, it is very possible a 4 would turn you down because she thinks she deserves an 8 or 9. Also some women are just taken. So it will take you time to figure out who you should go for. And there is a very small chance a 9 might not know she is a 9 because never got hit on.