Hey there. I know many of you are just like me and are achievement whores. I know this achievement can be hard for some people since you need to gather so much material just to make a decent working rail way. Well I just officially completed this task. I am willing to help you out. Just message my gamertag :dwall94. I will love to help you get this achievement. I will only be on at certain times so if I don't reply don't worry I will get to your message as soon as possible.
He/she is saying if you need help doing it he/she can help. He/she already has it.
Why reply if you don't even read the post? He was offering to help people get the achievement done, not asking how to do it.