Openlayers + GPX + Wordpress

I need this type of Openlayers map with elevation display: [login to view URL] Currently I make route in google maps and save it to KML file and add it on WP via OpenStreetMap Plugin V5.2.2 (you can add GPX or KML file) With this project I would like to get map dispaly with elevation with custom CSS to match wp theme look. (elevation chart under map, colors) Solution can be with or without plugin, more simple better.