Nah pretty sure I want to keep it at 45. I'm not even sure about 95 prayer because you start to hit 70 def+ mains at that point - it's 96 combat right now, and 95 prayer would bump it up to 104.
Keep it how it is, 99 range by itself isn't worth it, but if you need some extra money or want to get hp up aswell then training it through aviansies or something would be a good idea.
The difference between 94 and 99 Mage is almost non-existent - the only thing might be Miasmic Barrage, and that can be obtained at 96. It's really not worth the effort, especially when there's 99 Ranged and money to get.