Why spend the money to install a panel-mount VFR GPS? A used
portable/battery GPS on Ebay would be much cheaper and would additionally
serve as a battery backup in case you lost your electrical system while IFR.
A used Garmin 196 would be an excellent choice since it has a "partial
panel" page that is a good backup in case of gyro failure; it can even help
you to monitor your IFR approaches via its moving map and thus is more
helpful under IFR than many panel-mount GPS units.

--
Richard Kaplan, CFII

www.flyimc.com