SUBSTITUES FOR CHICKEN KIEV?!
Yes, you should be able to!
However, just go easy on each of the herbs as there are a few there and all of the herbs are fairly strong in flavour.
With the cracker crumbs, you should be able to do that too just as long as they are finely chopped/grounded otherwise you'll have trouble getting them to stick.
You can but than it wouldn't be Chicken Kiev.
Garlic, parsley butter is a different taste from cilantro/ oregano and Im not sure that that combo goes well. Make it mexican or Italian. Fresh herbs are always preferred.
Absolutely to both questions.