Woocommerce orders & emails

Can someone point me to some documentation or a good plug-in that will allow me to customize the woocommerce order checkout and follow email process? A lot of our customers are retired and older and still want to print their orders and pay with a check so I need to add a print button at the end of the order process.  I also need a way to make the emails our customers get have the same look as I site, same branding (colors, graphics etc.). Surely there is an easy way to do--I have looked at https://woocommerce.com/products/conversio/ and it seems like it may work but I would think such a popular ecommerce platform would allow basic email branding -- it seems with woocommerce all "standard" ecommerce needs require another $69 to $129 a year plug-in. Thank you.