My experience is yes. I've been flying the RV-10 that way (VFR) for a year and a half.Is a single 7" G3X screen enough real estate / have capabilities to act as PFD with a split screen for engine monitoring?
Yep. A single GDU470 would be a bit small for all and map function. But using say PFD/MFD/EIS on the GDU and having a separate tablet for your nav works super.use an iPad mini as a map