Assign custom link in give_form_grid

Hi there

I am using the give_form_grid to display the current campaigns.
When the user clicks on the campaign i want to show him a page about the campaign with some additional facts, in this page i will include a donation button. When the user clicks on the donate button i want to show the donation form page.

Currently the give_form_grid refers to the donation form page.

I don’t want to use any redirection plugins for this.
I’m sure someone already extended this functionality.

https://github.com/impress-org/give/blob/master/templates/shortcode-form-grid.php#L26

This get_the_permalink() function I would need to replace with a custom logic.

I’m not a familiar WP developer; so it would be nice to get some feedback to the following approach:

1) I create a simple plugin and assign the form-id to the page-id.
2) I create a custom lookup function with the form-id which returns me the page-id
3) I copy the shortcode-form-grid.php and place it in theme/give/shotcode-form-grid.php
4) I call this custom lookup function instead of the get_the_permalink() function

Thanks for your feedback.