is this mission worth doing with 10 terraformers i could easily make a planet better then the rewarded exotic

Ummm... no you can't.

With 10 terraformers you could turn a really nice massive metallic say into something approaching 10xMega in several resources. And then somebody steals it.

With the Hyperterraformer, you can turn a worthless piece of junk into a massive 13x in all resources that nobody can ever steal.

And you'd still have the nice planet you were thinking about using terraformers on.

If you have the stuff for it, its a no brainer.
The only question is if you want to buy the terraformers or wait and get them from npc drops.

Not that one exists, buy say theoretically you found a very tiny planet with no resources.
The Hyperterraformer would be worth the equivalent of 7 spacial expanders and 25 terraformers.

On an average size average resources, 3 expanders and 21 terraformers.

Basically, you get to pick the planet on your list with the name you like most and convert into awesome.

k. thanks