More in-depth back story needed for a friend's 17 fanfic

[Angelus]

I have this friend who was planning on making a fanfic about Android 17 and was just hoping on more input from you guys to make the story more in-depth and better.

This isn't the story itself but the premise is basically like this...

17 awakens, resurrected, in the waste land where Cell was defeated. He finds out after an unspecified amount of time, from 18, that the Z Fighters are very powerful. 17, being a free-spirited guy just wanders around Earth until he finds a space pod in the middle of nowhere. The Ginyu space pod that Goku used to get back to Earth. He goes in it and finds out that there's still enough energy to go back to it's most default location: Planet Freeza. Bored out of his mind on Earth, he travels to Planet Freeza. He finds out about the evil divided empire that has lost proper leadership. He sets out to destroy all the remnants of Frieza empire for fun, not for justice. And it's just perfect because he so happens to kill "evil guys" so it would be less likely that someone would set out to stop him. He spends the next 15 years travelling from one Freeza planet to another, refueling at each stop (since the space pods were the standard mode of transport). There he enjoys killing everyone and destroying buildings and landscapes on each planet and moves on to the next. It's fun. He basically annihilates most of the remnants of Freeza's empire for fun.

He comes back to Earth at the End of Z. Came to visit his sister to see how she's doing. 18 says she's off to watch the WMAT. 17 finds it boring to watch and decides to join for fun. Unfortunately, he gets eliminated in the preliminaries via ring out by Goku. Vegeta sees 17 wearing a crown. King Vegeta's crown. Vegeta wonders where 17 got it from. 17 says he got it from a corner in some huge trophy room in outer space (referring to the trophy room in Planet Freeza) and that it looked "cool on him"...

So yeah. Any ideas to make the story better? You have to remember to keep 17 in character though. He can't be doing some heroic stuff. He's just doing it for fun. The same way Future 17 destroyed stuff for fun... except this is across the galaxies. One continuity conflict for this fanfic though is that 17 actually appears in the Buu Saga, on Earth.

I had an idea to make the Galactic Patrol (from AT's other work Jiya and Jaco) recognize him as some great eradicator of evil and gave him a medal/badge for it. 17 declined as the badge/medal wouldn't look good with his clothes and that he didn't care about justice and all that crap.

What are your thoughts?

[rereboy]

Maybe he should steal a ship from capsule corp after sneaking around to check on the gang and #18 that happened to be there. Finding the pod in the middle of nowhere would be too convenient.

[dbzfan7]

We had a 17 fanfic. It's called Super 17 arc of GT. I mean come on he was always meant to be stronger than Cell? Really? The fusion with another 17. Seriously?