Family's budget planner

Hi, guys! I am programmer, site of mine is http://eteriosoft.eterio.com. Some time ago I did work as freelancer and found customer with project. Later I have moved to other country and started full-time job. And I do not have enough time for participate in project, but want to finish it and move to life. Project is a long-term budget planner. In short form, people can enter own values (a lot of them really), looks like “family income”/“family expenses” and then build whole understanding about how much they can use for additional projects. Or to get understanding “need to work more because your expenses more than your profit”. It is in short form. Customer provided Source file from in .numbers file. It is looks like Excel file, but for Mac. Original one is here [login to view URL] Converted to Excel is here: [login to view URL] Excel file is not 100% equals to .numbers, it has broken graphs, some pages divided to several. But to get overall understanding it is enough. Need to enter input values and to get output values and graphs. System what should be developed instead it is a web application, which allows to calculate by same algorithms as .numbers/.excel files have (algorithms already implemented). In addition it will have user’s accounts and allows storing values for several years. I have implemented almost (I hope all) calculation’s algorithms. Please do not be afraid, my system just has just all source file’s sheets on one page [login to view URL] Next steps to build user’s account, possibility to save entered values into database, to add graphs. Then polish, divide it to “Step by step” pages and publish to customer. Then polish again, add integration with payment system and publish to production. Etc. There will be 2 versions: first one for customers who want to fill everything myself; second one for agents who will speak with customer and fill instead of them. But it will be next steps. Technologies on which it should be implemented are C#, ASP.NET Core, Bootstrap Javascript, jQuery, Entity Framework, MSSQL. [login to view URL] or similar for graphs. If you are not familiar with some of them, I can lead you. First task will be implementation of database and store input values (entered by customer, not calculated) into database. Please estimate and let me know time and budget. Links to resume/portfolio also welcome if it is not restricted by system where it will be published. I am looking for long-term partnership and building of team in best case. I have experience in development and can help you as well. Don’t be afraid, nobody knows everything, if you can learn it, then it’s okay. Thank you.