There is no mp5 cloak enchant, 2% threat is what I'd use personally. 7 resist isn't very much at all aswell as being seldom useful.
For the chest I'd use the 6mp5. 6 mp5 is 72 mana a minute while 6 stats would give a flat 74 mana. 100 Mana (which I know you didn't mention) would be trumped the same way. 6 spirit and 15 spirit would give a whopping 1.5 and 3.75 healing respectively, which is rather pathetic.