change post taxonomies

Excellent plugin and concept.

I am trying to use it to pull youtube videos into this theme http://themeforest.net/item/videotube-a-responsive-video-wordpress-theme/7214445

Videotube uses a custom post_type called “video” and a taxonomy called “categories” instead of “category”. To achieve my goal I should have made a custom pipes plugin but I just changed the existing post plugin:

In Wp-Pipes plugin folder I went to /plugins/adapters/post/fields/postcategories.php and changed tt.taxonomy = 'category' to tt.taxonomy = 'categories''

Then I went to /plugins/adapters/post/post.php and changed $post['post_type'] = 'post';' to $post['post_type'] = 'video';' and post_type = ‘post'”;’ to post_type= 'video'";'

I used https://www.youtube.com/rss/user/Vsauce/feed.rss' as an RSS feed and selected post as a destination, the video categories appear and I can select them but the published posts/videos dont have the categories selected. Any advise? Or how much would you lot charge to make a plugin for pipes that will do what I am trying to achieve.

https://wordpress.org/plugins/wp-pipes/