Joomla K2 module to search inside extra fields

Search module for extra fields in K2 in Joomla 3.3 (and above). It must present two search fields, name and last name. In K2, I will setup 2 extra fields, one for each above, with an alias. The module will search the extra field based on the field alias. If the person input only name, it can return results if there is a match. Same for last name. But if the person enters text in both fields, it must return results only if there is a match on both (but not on a match on only one field). I must be able to use template overrides for this module, as well as language strings for translation on multi-language websites. The fields are regular, a label and the field. After both fields, there is a “search” button (which I will style with CSS). When returning results, those must follow the formatting below, without the “advanced search” options that are presented in a regular search. The search result must have the title, and the full content of the intro text, with its actual formatting (it must not lose intro text content formatting). No pagination needed, because there will be very few results. I have attached a simple example of frontend and backend. If you have any questions, please ask.