Thank you all for taking the time to respond. Its extremely helpful to get to see all the different viewpoints.
Its seems that some were offended by the idea, which I don’t quite understand why. If I offended anyone in the process, I truly apologise.
There is so much of our food that is not available for wider population, as @hyperbowler said, these home dishes are not at deli’s or bagel place. Indeed so.
As said previously its not at all about selling religion or giving the chance to gawk at, its about giving people that ARE INTERESTED in different cuisines to taste something different that is not readily available and its totally not a restaurant based on religion.
The Shabbat Dinner idea is part of the business venture and the reason I posted the question is to hear if people would be interested in tasting this unique cuisine.
@Sasha, Maybe I didn’t write it clearly but it was never intended for it NOT to be for observant Jews, all are welcome, again; its for those interested in tasting something new and thats precisely what I wanted to find out, the interest rate!
As well, It will be kosher; prepared according to kosher law, using kosher ingredients but just not the certification (which doesn’t make it unkosher, its a guarantee) like for example if someone were to sell gluten-free bread but not have it certified under NSF, does that make it not gluten-free?
@Bkeats, I don’t see where you got that Gefilta Fish will be at the centre of the restaurant as this is incorrect, this will be one of the foods served.
There is more to food then ‘dropping in for a quick meal’ at a NYC Burger place.
Is a relaxing experience on a canal boat enough of a ‘shtick’ for you?
I posted the question to see the interest in one aspect of the venture which is to serve a Shabbat Dinner Meal and it will not consist of only 3 dishes @Hunterwali.
For all those curious on the strawberry flan cake. Its made with non-dairy whip and from non-dairy kosher jello , can you believe that is actually available? 
Indeed I don’t have the experience of opening a restaurant but I have experience in cooking, especially for large groups. As mentioned I will be taking a culinary course prior to launch.
Finally I must thank @Harters, Your perspective is refreshing, your ability to recall what has been have written and referring to it in its right times is impressive. And you didn’t necessarily poll this as a ‘‘Yes-go for it’’ which is fair.
One always needs thick skin to start new ventures but you asked the right questions, understood my point and then based your reply on that.