Im trying to make a bloodlord samurai bla bla bla chracter/ running around in nothing but monk robes using the ebony blade.. So i need red clothing and/or armor.

Also: If you become a full vampire then cure yourself, do you keep the vampiric drain spell? Silly question probably but you never know.

For the first.

I'm not sure if it's possible to pick pocket it off of him but, you could try and find the wandering redguards and kill em for their stuff.

for the second.

I don't think so, though I've heard there use to be away to keep it, not sure if a patch took that away or not.