A few things:
* If you don?t have any RV time, get some. I?ll take you up in my -9A in Savanah for free (no LODA);
* Have you flown control sticks before? Left hand stick? Some folks have trouble, some don?t. No way to predict who will and who won?t;
* Like many planes, the -9A gets pitch sensitive in the flare;
* Flap speed in the -9A is low, and the -9A floats like mad if you?re too fast;
* And if you get real slow on final, you?ll get a high sink rate;
* With the big wing, the -9A will beat you up in turbulence, more than in most spam cans;
* With the Cascades already behind you, you?ll be past the highest of the mountains. Still, read up on mountain flying. The -9A should tolerate density altitude well, but it?s not summertime yet;
* For first flights in a new plane, make your first legs short till you learn your fuel consumption precisely;
* I always plan two hour legs in my -9A so that in case the fuel isn?t available at the planned stop, I?ve got an out. Had to use that twice so far;
* Glass cockpits can have steep learning curves. Don?t assume that all will be well.
Hope this helps!
Ed
PS. I've flown from Washington state to Oshkosh several times in a Cessna 175.