You can substitute the Grey Goose VX with regular Grey Goose, and the apricot brandy can be substituted with Calvados, or any other mild fruit brandy.
1 1/2 part Grey Goose VX
1/2 part apricot brandy
1/2 part peach syrup
1/2 part lemon juice
Combine all ingredients in a cocktail shaker. Shake and strain into a martini glass.