If you're planning on going HID... Please, PLEASE go with projectors 

Looks good, man. Those are legit Harley headlights, correct? If you bought from Tasca or someone reputable, there shouldn't be any problem with leaks. Usually the leaks come from knock-offs.
do not do projectors larry, i think they look extremely ugly...and you should do it all yourself.
As far as taillights & 3rd brake light go, check out gorecon.com. Then you can take the part number from their site and go to streetsideauto.com and usually you can get the exact same part from them for cheaper....and it is the recon brand.