Well I have been trying to find a thread that has some good infi and it all seems to be kind of spread out. I just got some gear last night and decided since imo it looks kinda awesome, I would share it! On Alderaan you can do a Heroic 4 called Red Handed, which is in the last section of Alderaan. The quest reward for this is the Fortified Phrik Jacket. This jacket seems to be the closest so far I have come to getting a duster. I'm lvl 33 and it has been kind of sad to find cool stuff so far. A good starting Jacket that I used was the Gunslingers Jacket, lvl 19 reqSmuggler and Jedi Knight only. It is an Orange so you can fully mod it as well as the Fortified Phrik Jacket. As far as anything else that looks cool w/o having to do PvP, I know that Armortech can make a Battlemaster Jacket I think its at 320 and the req lvl to use it is 41 . As for guns once you get the A-300 Sonic Needeler which is my absolute favorite so far, there are 2 guns you can get from Balmora Commendations the C-305 Military Shrieker and the M-305 Rancor-X Enforcer, both cost 14 Commendations each and req lvl 36 to use. As for the headgear im using so far, and this saddens me, but the only decent piece of headgear i found was the RD-03B Coordination Headgear. It has a Bandana across the face and since im going evil, it looks awesome. Below are links to all the items I mentioned and as I find more cool stuff I'll post it.
Jacket - http://www.torhead.com/item/8lrpxPP/fortified-phrik-jacket
Gunslingers - http://www.torhead.com/item/3vu0YAF/gunslingers-jacket
Guns - http://www.torhead.com/item/3KNHN75/c-305-military-shrieker
http://www.torhead.com/item/5KYY1qY/m-305-rancor-x-enforcer
As of right now I cant find where I got the headpiece TORHead keeps trying to show me different stuff, so once I find it i'll update this as it does look pretty bad ***. Also If anyone needs me to make them that Armormech Jacket im on Darth Scion, names Alucärd. Hold alt-132 for the weird ä in my name.