You can probably look in the frozen section of a Health Food Store and find some brand of vegetarian "chicken" patty stocked along-side the veggie burgers. You could heat these per package directions and use them in the recipe.
Take a look at Quorn products in particular. I think I've seen them carry a "chicken" patty too.
If you've ever come across "wheat meat" in the store or even Morning Star Farms Meal Starters (the "chicken" variety), you can bread and fry these products as a substitute for your fried chicken.
I think "vegetarian fried chicken" is a bit of a complex item for a recipe to call for without further explanation, but that would just be a pet peeve of my own.