Wordpress Template Customization/Training Needed

I need a wordpress fluent person that speaks English well that I can send projects on websites that I'm building. I would like a reliable go to person that can as projects come up.

I need to add slide shows of images where the current static image is.
http://peacefulhomeskc.com/portfolio-view/project-name-11/

I need a book now button with a calendar that shows what dates are available.
Here's an example of what I need. - the "booking" area
http://www.goshenretreatcenter.com/