You originally asked for just one economic forecast/scenario suggesting Brexit would be beneficial I provided a link showing two out of four possible scenarios where this would be the case. Which contradicts/disproves your 'It doesn't predict a better outcome for our economy if we Leave than if we Remain though' . statement.
I'm not the one claiming these spurious projections are in any way meaningful or accurate. Have you had a look for other pro Brexit economic forecasts yet?