Well, that picture is tiny and hard to make out. But it appears to me that it is a metal panel, possibly a Pac-Man type.
Those joysticks appear to use the standard Happ/Wico bolt pattern, and thus are replaceable with most standard sticks (except for the japanese ones, which have a different bolt pattern). But those look like pretty standard microswitch sticks, and won't really be any different than most others that fit
The main problem with that panel appears to be the start buttons stuck right in the middle. A very easy solution would be to switch out those 2 buttons for standard ones, add one more (given a slightly misshaped but still nice six button layout), and then add 3 more in the same layout to the other side.
Yes, you can get a new graphic for the panel, search ebay for "arcade overlay" there will be many different ones available.
If the panel has already been converted once it may have too many holes to try and fill to get the proper 6 button layout, which is why I suggested trying to work with what you have. If that IS a Pac-Man (or Ms. pac, Super Pac, Galaga, Rally-X, or Bosconian) cabinet, then you can buy a new blank control panel for it from Two bit score, and then drill it however you want.