My thoughts...
[*]Enchanting - always fill up the middle path of this, regardless of what your build is. I personally would ignore the right/left paths.
[*]Smithing - All the Heavy Armor perks + Arcane smithing.
[*]Archery - Depends how much you're going to be using this. When I think "battlemage" I think magic as a ranged weapon.
[*]One Handed - All of the armsman perks. Pretty much everything else can be ignored.
[*]Alchemy - All alchemists + Physician + Benefactor + Poisoner. This allows you to make potions with the maximum possible prices. I'm pretty sure purity actually reduces potion prices because it removes effects, so if your alchemy objective is cash (as it probably should be) you should ignore it.
[*]Conjuration - what you wrote is probably a good plan for you. I personally love Conjuration, though. Twin Souls + Permanent Animated NPC's = your own personal army.
[*]Destruction - You'll want dual casting + impact. Not having Impact makes destruction pretty much worthless IMO; none of the "augmented" style perks are really any good. Enchant armor for 0 magicka cost and it's all moot.
[*]Lycanthropy - Caveat: I've never used it. With that said, I can't imagine it being any good. Conjuration would be better, just my opinion. Since there are a lot of perks there, you're probably going to have to pick and choose a bit between them depending on what you're going to be using a lot.