Modify php, website , JavaScript JS, JavaScript JSON,

Before send any proposal please read the description intro it will take only 5 mints Note::( this site is not built from wordpress any other frame work its from php. javascript , html, css, mysqli, and less should have sound knowledge of php before send a proposal) ** needed to modify the " search filtering " with custom user friendly urls example 1 : look for this site search section [login to view URL] it should have to be in .xml site map too example 2 : if someone select in "real-estate" category subcategory "houses" in filter in ad type : "for sale" or "for rent" if select "for rent" type url, title, must appear like following url along with the tile and in [login to view URL] (note : ad type is a custom field ) [login to view URL] / or for sale or country providence or city **needed to modify custom fields and validate all those fields from the backend when making a custom field its possible to make it to clean search urls with filtering, it should have to appear in site title and sitemapxml ** location must be ad detail url, title [login to view URL] country vice and city vice example : ad listing [login to view URL](countryname) [login to view URL](cityname) ad detail page [login to view URL](ad-url)/(city) all must be according to country ** Breadcrumb should have to come like this Home >> Electronics & Appliances >> Mobile Phones >> country name or city name (county name or city name must be clickable it should have to show all that city country ads ) example : complete breadcrumb structure is in this site [login to view URL] ** in category pages possible add small content as well "like "category description " most of the coding have been done for the site and needed little bit of modification and put the codes here and there *** needed to modify little bit of the template as well making sidebar rows and stuffs site url [login to view URL]