Question for mixologists

Not able to hunt up my old thread, I am questing for a martini (yes I know that current vodka drinks are not true martinis) that tastes like a Red Vine.

Not wanting to buy a ton of alcohol I won’t use if this doesn’t work, what do you think:
Absolute Razz (the Red Vine is supposed to be the original raspberry flavor with slight modifications) as the base with grenedine for flavor and sugar.
First - how close is this to a Red Vine?
Second - would I need to add Kirsch (cherry) or Absolute (strawberry) to make it closer?
Third - any other flavors I should think of for the Red Vintini?