Drupal Highcharts, tables and filters March 2017

I have a Drupal website that uses Highcharts to display information about used car prices to users. The site administrator uploads selling price data in bulk via an import chart feature. This provides the data for the charts. The user has two top navigation tabs which have filters allowing the user to select vehicles by Country, Make, Model, Year, and Mileage for price analysis. In one of these tabs – Valuation 1 – tables of buying and selling prices can be shown but no charts are available. In a second tab – Valuation 2 - the user can display tables of buying and selling prices and charts of current selling prices as well. In recent days some faults have appeared in the charts, filters and data tables displayed in these tabs There are three faults: A. Valuation 1 and Valuation 2 Tabs: The tables containing buying and selling data are displayed but the header line showing years is not displaying the correct years. The header row should display years 2017 - [login to view URL] the tables are displaying years 2016 – 2010 B. Valuation 2 Tab: The tables should display buying and selling data according to the selections made by the user. The tables are updating correctly in Valuation 1 Tab. However, the tables in the Valuation 2 Tab are not updating to match the user selection of filters. In Valuation 2 Tab the display of data in the table remains static whatever model is selected C. Valuation 2 Tab: Chart Displays and Make & Model Filter Drop-Down lists: [login to view URL] chart data exists but the charts are not displaying. The charts should display after the user makes their filter selections and presses the ‘Apply’ button. b. The user can make a selection using a number of filter buttons which display drop-down lists . Two of these filters are ‘Make’ and ‘Model’. The changes required to these filters in this tab are that the Make and Model filters should be restricted to Mercedes Benz vehicles only. These filters should be dependent so that when the user selects the Make ‘ Mercedes Benz’ in the Model filter drop down list, only the products of Mercedes Benz are displayed and they should be displayed in alphabetical order. At present the user can selects all Makes and Models. Completion Date: One week from award of project What am I seeking? A Drupal specialist or small team with experience of Highcharts and Ajax calls. Budget: Up to $100 or near offer