wherein some sort of turtle/reptiloid alien is somehow stranded on Earth, and can make electronic(or all sorts of things? (can't remember anymore)) work with his (on demand) red glowing finger. And tries to build a "telephone" out of trash with the help of a child, to "phone home" and call for help.
Nope, they sent a rocket or satellite. The positive doppler shift means it's heading towards us, fast.
If we would fly there, we would need about 80 years with our current rocket tech. It's the nearest earth-like planet afterall. They could be more advanced and be here earlier. We'll see.
You did specify current rocket tech. The technologies you're talking about have not been tested or used commercially or by any space agency as far as I'm aware.
wherein some sort of turtle/reptiloid alien is somehow stranded on Earth, and can make electronic(or all sorts of things? (can't remember anymore)) work with his (on demand) red glowing finger. And tries to build a "telephone" out of trash with the help of a child, to "phone home" and call for help.