Shopware Custom plugin

We have a Shopware 5.3.4 Shop. We have multiple tables with car selection data. We need a plugin designed that would add the following to a shopware shop. 1. Two input Fields allowing for the entry of a 4 digit and a 3 digit code. it should automatically jump from Field One to Field Two, when 4 digits are entered. With custom error form in case a match was not found. First 4 digits, for example should allow for a matching manufacturer. Realtime checking during entry would be a bonus. If a Match was found it should Display the vehicle found, and if need be, display a additional selection if more than one vehicle was found. 2. A drop down based form with 3 down down. A. Make B. Model C. Motor This would lead to the same point as the first Form, which the vehicle being selected. From here we would need the vehicle matched to a replacement parts, and those checked against the Shopware Products for matches, and then display the matches. Bonus would be displaying first the list of matching categories and then onto the matching parts The selected vehicle needs to be remembered, with a button to allow reseting the vehicle. 3. New Search form, using the additional tables, for reference numbers, linking to the additional article table and and the shop ware products for a match. No management or backend plugin will be needed. attached are 2 .sql files One has the structure of the additional Tables, the other is a description of the table fields and sample queries of how that work together. We can provide a detailed workflow of the queries and tables per form request. This plugin needs to be easy to install and remove form a site, allowing us to change templates easily ( Christmas and other holiday templates). We are IT aware, and capable PHP programmers, we just do now have time for this in-house project. We can provide detailed and "intelligent" answers to php and mysql query questions ;)