I have born to perform, I have a bunch of sleights, but these are quick, and pack a punch.The patter is short so people aren't like " Ok but what about MY card?" but yeah I have Sankeys coin stuff and am good at that. And I have a bunch of other stuff so I can have different routines. Maybe get rid of the invisible deck so I dont have to switch cards. How about a matrix routine? or Jokers wild? perhaps a mini-Dover pan and make like their recipt appear or somthing around that idea?
In resturaunt magic, you shouldn't being going to the bathroom after each performance just to reset your tricks....Scotch and Soda although a great trick, isn't really made for a resturaunt magician...the reset after each performance is just too impratical.
Matrix is the same way....do you think the spectators are going to move their plates around to give you enough room to perform this? You have to expect that they won't...
Joker's Wild is a good trick to perform because it instantly resets, its quick, not confusing, and packs a pretty big punch...something that is definetely opening material.
I would honestly suggest thinking over doing looking for a job...the 5-7 tricks you mention might pass for the first time, but what about people who come to the resturaunt often? Are you going to show them the same trick?...Just think it over...I for one am not going to get a job for atleast another few months, just to be 100% I am ready (also to make-up a bunch of routines that would work for me)...
Hope this helps