Nopcommerce edit 3 lines of text and recompile project

Hi there we have a drop down menu that we need 3 lines of text featured on the customised home page to be edited and changed into a different language (english to french) It is for a nopcommerce website version 3.9 so helpful if you know this system. I believe you would need to download nopcommerce v3.9 , install it locally, open the modified folder change the text on the file : CatalogController - recompile the project and send us back the finalised web page to upload to our site. i have attached the file with the 3 lines we need changed. Please ensure you can do this before bidding. the 3 lines to change are Choose your printer make Choose your printer family Choose your printer model no