Functions for woocommerce - emails

I use woocommerce for eshop and we need to create these two functions: First function: when the customer orders something from our eshop and in checkout form he chooses payment method by bank transaction, automatically he receive email. The content of email includes text and information which we set up in setting of woocomerce - in part od setting checkout and section payment method and there we click on this payment method bank transaction and here we add specific text and information which are in content od email which is send to the customer automatically. In this setting we need to have possiblity to add this two things: firts is order number - so in text there will be text like payment do with this number: and here will be add automatically order number, and the second thing is that there will be add some text like payment make till: and here will be add date (for example date + 14 days) so in the email there will be write date automatically which will be with add 14 days (but we want to have possiblity to add how many days will be add to the date of order plus - for example in file [login to view URL] - you will desribe as how to change it in code) Second function: when the customer orders something from our eshop and in checkout form he chooses another payment method than bank transaction, but for example pay by cheque, so automatically he receive email. The content of email includes text and information which we set up in setting of woocomerce - in part od setting checkout and section payment method and there we click on this payment method - pay by cheque and here we add specific text and information which are in content od email which is send to the customer automatically. In this setting we need to have possiblity to add this two things: firts is order number - so in text there will be text like payment do with this number: and here will be add automatically order number, and the second thing is that there will be add some text like this: Pay first amout till: and here will be add date (for example date of order + 14 days) Pay second amout till: and here will be add date (for example date of order + 34 days) Pay third amout till: and here will be add date (for example date of order + 64 days) (but we want to have possiblity to add/change how many days will be add to the date of order plus in each pay above - for example in file [login to view URL] - you will desribe as how to change it in code) When you will do it, you have to decribe where in code it is add (for example in [login to view URL] or in another place) and how to chnge the data in code. Please send us the price for it and how long you will do it.