Hi,
yes, I also plan to plant heliconia, ravenala and streletzia. The former first burgomaster and fundador of Lucianópolis, 91 years old, has one heliconia grove in his garden and I spoke with his wife. She told me, that she will give me pups of her heliconia for my yard next time.
@lorax - Why not try Musa basjoo, sikkimensis, balbisiana, Helen's Hybrid and itinerans, also Orinoco and Dwarf Brazilian (alias Prata) in Quito?
These are more cold resistant and more suitable for Quito.
You live currently in Bolivia in the neighbourhood of Brazil.
Best wishes
Basjoofriend