36 oz/sq ft is gonna be a handful. Definitely need flaps for a reasonable landing speed. You didn't say which manufacturer or plans you used, so I don't know how prone your model will be to snap rolling if you stall her-some are worse than others. If you'll identify the plane, there will be folks here who can give you first-hand info. Don't rush the lift-off, and mentally review your spin recovery technique, just in case. There's a great article on this site under "techniques" , I think, on scale flying. Might be worth a look.
Good Luck,
John