1カ月以内ならいいよ

Thank you for your response. When you say you will get stock in one or two weeks does that mean after two weeks you will get stock and then you will send to the product to me?  *As long as I can receive the package within one month, I'm fine.*
 If you are unable to or you are not sure, I would like to cancel my order please. Thank you.

もし、先方への入荷が1ヶ月以内であれば、*から*までの文章を下記に変更してください。

 As long as you can send out the product within one month, I'm fine.