Just be very instrument proficient, that’s the biggest hurdle.

Thanks, BT.
One follow up question:
In training and for the checkride, is GPS allowed for navigation and non precision approaches, or are they only done with the GPS turned off? In other words, can I use the GPS for situational awareness when flying a VOR or LOC approach, or am I required to fly it solely by reference to the CDI?
I heard somewhere that all the planes have a 430W. Is that correct?