While waiting for the fuselage, I am playing with the panel and what I want to put in it. I already ordered a Lycoming IO-390 with dual P-Mags. I am going to put in Dual G3X Touch screens and also Vertical Power (VP-X Pro). So the question is, I can't decide how to back this up. I do plan on flying IFR, but only when necessary. I am a first time builder and I even know less about avionics, etc., so please be nice. What is the best advice? Dual alternators, dual battery, dual ADAHRS, backup EFIS of a different type? Considering weight and price, please give me your recommendations. I have learned so much from the experienced builders from VAF and I am thanking you in advance.