Homemade Kahlua and something to do with it

An old friend gave me this recipe awhile back and I may pull it out for the holidays if my family that never drinks ever finishes a bottle of something so I have something to pack it in???

Anyhow, here it is:

Homemade Kahlua

2C. Water
2C Sugar
1/4-1/2 C Instant Coffee
1 1/2 C Vodka
1-2 Vanilla Beans
10 Kona Coffee Beans, whole (optional)

Pour the Vodka, Kona beans and Vanilla Beans into whatever
container/pitcher you will be useing.

Boil water and sugar stirring untill dissolved. Remove
from heat, and add instant coffee VERY slowly, and
stir well. Allow to completly cool. Add the cooled
coffee mixture to the vodka w/ vanilla beans. Cap
well. Shake several times per day X 21 days. Remove
beans, and enjoy!

I wonder if I can sweeten this with something else and use less water and get a flavoring for vaping? Add it to some VG or add VG to it to get a decent taste without PG (I'm going to try vape flavors without PG since so many are allergic). Might be worth a try when I can afford to play with it--I already know how to do menthol and stock the menthol for it and I've got a shit-ton of vanilla beans to try for a good flavor with those.

And as for something awesome to make with it?

Mudslide

1 jigger Kahlua
1 jigger Amaretto (DiSaronno is best)
1 jigger Vodka
1 jigger Bailey's or other Irish Cream

Mix thoroughly. Can be shaken in shaker and poured as shots or served
over ice in highball glass.  Those who find this drink too rich would
enjoy it more with a spritz of club soda added.