Big Valve Peanut head /6

I don't mean to insult you, but from the other /6 heads I see here and in /6.org, your price seems really high. Your description doesn't explain what makes your offering worth so much more than the others I find when I search for "/6 head".
Your pictures show what look to me like rust spots popping up here and there, making me wonder if there's rust in the valve stems and guides. I would like to have a ported and big valve /6 head, but I just can't justify your price for one that looks to need a complete rebuild.
Again, no offense intended and if you can explain away my concerns, I might be interested.

BC