Different prices for different posts

Hi, sorry for my english. I will do my best:

I`m planning to use your plugin (Free or Premium). I will build up ONE FORM and in the backend from the posts, there is an text field (ACF). Every posts has another price.

So how can I get the price for you plugin and the field for pay with paypal and pay with credit?

I hope you understand my plan 🙂

br