Nice rundown. You should upgrade your Nano to brushless instead of selling it. I installed the "wild kit" from Astro designs
, used a stock MCPX landing skids (not an exact fit, but close enough) and soldered MCPX battery connectors on. I am using Glacier 250 mah batteries
from EP Buddy (2 bucks a piece) with this setup, and it has transformed the Nano into a beast - a lot more power with little to no bogging and 5 minute flights. It's still a very light bird and can take a crash very well. My only problem is it's too powerful to fly in the bedroom for my skill level. It's great outside and low to the ground - it's my driveway heli. The 130X is my favorite outside flyer anywhere else.