If you are interested in the stain, use the Pyrocat MC formula with hydroquinone instead of catechol.

You could use 2 grams of Metol, 5 grams of hydroquinone, 5 grams of borax, and 10 grams of sodium ascorbate to make a liter of working solution. It's D-76 minus sulfite plus ascorbate. If you don't have ascorbate on hand, mix 2 teaspoons of ascorbic acid and 1 teaspoon of sodium bicarbonate (baking soda) in a couple of ounces of lukewarm water and add it to the mix when the effervescence subsides. Treat it like D-76 and see what happens.