Going 30% from Nitro/Electric 60 size. Looking for support and reference source

[Gary Whitlark]

I am upsizing to a used DA50 Extra 3xx 96" wingspan from Nitro size. Reference or support for upgrades needed for safety. RX Life mah? Should the receiver be a Multi-satellite type like the spectrum with 4? Is the smart board able to change from NiMH/Nicad to Life? Do I need to change something first?