That seems like a formula to wind up with fairly high ABV (assuming it would ferment). The problem gets worse for smaller (i.e., more concentrated) kits. If my back-of-the-envelope estimates are right, and assuming a large (16 liter) kit, the enhancement in ABV would be a factor of 1.3. That is, if the kit "should be" 13% ABV, your procedure would result in a 17% ABV final product.
I would wager the result would be palatable, if somewhat expensive.