Price building comparison chart / form

Does anybody know of a form that will allow you to customize a plan based on your needs and pricing? Picture a comparison chart for a hosting plan Basic, Pro, Premium. None of the plans need exactly what you need so there would be an option for Custom. You could select which pieces work for you out of all the available options and the form would create a price based on you selections.

I’ve google’d 20 different search phrases but I haven’t found anything out there like this. It would be an extremely useful plugin.