Spelt Sourdough Pizza Base

hello,

I am hoping to make a spelt sourdough pizza base soon. I have found this recipe on the internet 

• 1 cup Spelt flour.
• 25 grams of lard or butter.
• 1/8 teaspoon Celtic sea salt.
• 1/4 cup of sourdough starter.
• Water.

http://www.rejoiceinlife.com/recipes/pizza.php

Firstly what do people think of this recipe - is there anything I should change or if you have any tips??

Secondly I assume that I can use 1/4 cup dry dough starter.

Thanks