No Mavlink thru tether

Hi Kevin,
many thanks for your solid support. It has been great just knowing there was a guru to lean on when it all started to overwhelm my knowledge base.
I had already read thru the thread on the GPS installation, and I have this unit ordered from eBay, should be here next week
UBLOX NEO-M8N GPS Module Electronic Compass w/Shell Fr PIX PX4 Flight Controller.
I had figured it would be better to trim some of the internal chassis to allow the GPS unit to be mounted the correct way up at the top of the enclosure, instead of sideways as seen in the pics. For me, that would be preferable, as there would be potential snagging issues with an external mount. What do you think?
P.S. Any way I can make the info panel at the right of the screen as big as it was a while back?