I just took the blades armor from Sky Haven Temple and am about to smith and enchant it. Is that the only set of blades armor I'll be able to get, or does it respawn? anyone know? I'd like to be able to make a couple sets as my skills go up.

Only set in the game.

Alright, thanks. I'll be careful with how I treat it then.

Personally the Blades Armor is like my 3rd most favorite set in the game,
1 - Imperial Closed Helm or Akiv'r Hood, Imperial Gauntlets or Ancient Nordic Gauntlets, Imperial Shield or Iron Bonded Shield, Ancient Nordic Boots, Fur Armor (pants only)
2 - Helm of Ygnol, Ancient Nordic Gauntlets, Ancient Nordic Boots, Ancient Nordic Armor
3 - Norkhiin, Ebony Gauntlets, Ebony Boots, Blades Armor

I believe it to be the only set. But there is that item duplication glitch for armor, check on you tube if interested

the only set, make sure to grab everything in the temple the 1st time because when you return theres a bug that marks all the items as owned so you would be "stealing" them.

This. ^

1) Place the pieces you want to duplicate on a mannequin.
2) While still in the menu: take all the pieces off.
3) Exit the house.
4) Reenter the house and the full set should still be on the mannequin.

Be advised: that this can mess up the displaying of armor because some or all pieces will always be on the mannequin and mix-n-match with the set you're trying to display.

Also, any duplicated improved/enchanted armor will be 'normal' when you recover the copy. The original will be unaffected, but the copy will be 'normal'.

Edited for punctuation.

That's not a bug, that's part of their jerk move of "Kill Paarthurnax or we take our toys and go".

An additional Question on this:

Is there an Akaviri Katana "Blade's Blade" in the Sky Haven Temple? I have located Dragonbane, but wish to have for Myself and for Lydia a Blade's Blades Smithed and Enchanted to Kick Butt status.

I have the one from Riverwood. As I now possess Dragonbane, the enchanted Blade's Blade is now in the possession of Lydia. Is there another unenchanted Blade's Bade in SHTemple?

PS
the Lexicon on this site is poor.

As far as stuff being "owned".... if you're on the pc, you can simply open console, target the stuff, and enter "setownership" in console. Then YOU own it and can take it without issue.

IIRC, there are 6 Blades swords in the temple on a rack

D'oh moment.

I had found a Blades Warrior Blade in a Cave in which he had made his last Stand against an overpowering Thalmor attack. If I can not locate the Akaviri Blade in SHT, I will use that and Honour the memory. If I can, I will return the Warrior's Blade to SHT and use one of the the others. It would Honour the Fallen Blade Warrior more to return that Blade to a Rightful Blades Stronghold.

We shall seek.

I own all known blade's sword in the game. My favorite is Bolar's Oathblade. As for the blades armour, I fully smithed the entire set out and it now rest in my armour chest waiting to be worn.