I am making a non-commercial website for people to help them sell their property and find property owners.
I made kind of form for vendors to add products using jQuery. I just get values from new inputs and insert them to product creation form inputs.
So, now I need to be able to add product filters (product specifications) on one page without refreshing the page. And I need to do it without changing the source code, only using .cshtml files.
Need to show all available options (filters)...
It has to look like smth like this:

My budget is not so much for this. I think it must not be so hard if you have enough experience in nopCommerce and ASP.NET and C#
Thanks in advance.