Hello there Xhoan. Always good to see new prospects. On to your questions.
1. Yes we do but not very often. They are mainly used as a starter ship until a larger transport can be bought. However, if you wanted to use one exclusively there would be no problem with that.
2. We do in certain cases. You can take a look here to see a list of available transports. New recruits can use any of those that do not require a Zoner Guard ID. So, pretty much everything on that list up to the Borderworlds Transport.
3. No, we do not use Junker transports. We try to limit our ship choices to those that will not cause trouble with the factions we encounter. A Junker transport would not be looked kindly upon by any Xenos and may cause trouble in Kusari.
I hope I answered your questions well enough. If you have any more you can contact me on here or on Skype under the username stygian0 . And there is a link to the recruitment thread in my signature. Hope to hear from you soon.