According to the Forest website, they normally sell tickets on a match day from a ticket office which cost £2 more, so for this game will be £34.
No chance of any more tickets in the Bridgford stand as the other half of this is on sale to home fans and is nearly all sold out.
It let me purchase tickets but that may be because of my Lincolnshire postcode. You'll be able to buy a ticket on the day for any of the home stands, or via their phone line and arrange pick-up from the City Ground next Sat.