I have to say I like the idea of a "specialty shop" that is yours alone. I wouldn't let people come in and make their own pizzas because you want others to come to your shop for "your" pizza....not some 8 year old who throws pineapple and spinach on it and says to his Mom "I made a good pizza right Mommy?" You want people to come from miles around to get one of Chef Jim's special pizzas...fresh mozz...home made sauce...fresh sausage and keep the options simple (simple neopolitan, sausage, and maybe a white pizza). If people want to take one home and throw green peppers on it...go ahead. Almost like the Seinfeld Soup Nazi...if customers ask for special ingredients, tell them "No pie for you".
The simpler the menu, the high level of food, the more you can charge and the more streamlined your operation becomes. $20 pizza x 30 pizzas a day = $600 per day x 6 days = $3600 x 52 weeks = $180,000 gross per year.
Ingredients/boxes ($40,000/yr), power/lights ($10,000/yr), equipment ($15,000), display case/decor ($10,000), insurance (commercial liability) ($5000/yr), rent ($20,000/yr)....Total Cost $100,000
Net income $80,000 +/-
You know a lot more about running a restaurant but it sounds possible.....but you'll be working your tail off.