Thanks. Actually the cabin is so small I don't miss the vent at all.
If you or anyone is thinking about a similar mod, drive around with the center vent closed for a while. If you miss the vent then this one is not for you...
Seriously I blocked off the vent air tight on the inside so all the air is redirected to the other open vents so you get just as much air just not from the middle.
It actually makes the driver and pass separate climate controls work better.