1. Would that be a good idea? How would heavy armor fare on an archer?
2. How do you guys handle close combat, or what do you do along with archery period?
My main wears
which is probably just the armor you're looking for. Yes, it makes no difference what armor you wear. One is heavier than the other, which means less loot. That's it, though. There's also a perk for both light and heavy that makes armor weightless when equipped anyways.
When enemies get close, I keep shooting them, or I take out my dagger/shield. My vampire can't afford a single blow, so a fear spell works wonders if I screwed myself over. Just hide in the shadows, cast a frenzy spell, and then kill the victor of the onslaught with a stealth shot albeit enchanted and poisoned.