Deviate said:
Don't know if it's already said, but something that gives the Dark Brotherhood armor bonuses to the Nightingale armor set. Seriously, give the best armor bonuses to a shitty looking set, then go ahead and make the nightingale armor set and give it shitty bonuses? Come on!
http://www.skyrimnexus.com/downloads/file.php?id=454
That gives you the nightingale armor without enchantments, then you can use a console command to spawn the parts with the enchantment:
playerenchantobject
for boots its the muffle enchantment: 00092a57 is the MGEF ID thats found through this table:
http://uesp.net/wiki/Skyrim:Unique_Items
click the link in the enchantment column and on the top right of the new page it will have the number.
for the enchantable nightingale armors id number from the mod just drop the part on the ground, hit ~ and click on the item. below your crosshair it will show its object ID.
Example using hide boots:
playerenchantobject 00013910 00092a57
And if you want to add even more enchantments you can add a second to it such as the thieves guild boots enchantment of fortify lockpick: 0007a100
playerenchantobject 00013910 00092a57 0007a100
So you can create nightingale armor with both the thieves guild and dark brotherhood enchantments, or any other special or regular enchantment you want.
I dont know if you actualy need the mod enchantable armor, the console command might actualy overwrite the stock enchantment so give it a try with the stock part and see if it does.
*edit
Heres a mod that allows you to create several different items such as the nightingale armor. not sure if it would be an actual armor because the mod maker calls it clothing. so it may not have any armor rating.
http://www.skyrimnexus.com/downloads/file.php?id=2092