Salts CaSO4 2.5g, CaCl 3.0g plus a quarter tab campden. Tea steeped at flameout for 8 min in mesh bag. Bag removed before chilling.
Based on boiling 7.00 gallonsliters at 1.056 for 30 minutes, this will decrease your wort by 0.50 gallonsliters, bringing your after boil OG to 1.060. You wanted an OG of 1.056. It looks like it will be over.