Mate
Assuming that all your assumptions are correct, you will need to take tax into account in your PE ratio.
This would take your PE to 14.28 at the 30% tax rate which is well above BHP.
With BHP, there is reduced risk to earnings because of the diverse range of its metal production and very long term management experience. There also would be completion risk on the expansion of JBM which must be factored in.
Cheers EOS
