Why must i do this to myself
Did it a year ago in a camper van. Absolutely class.
if you're short on time though, the stretch of road from Hofn around to Akureyri is alot of driving for less rewards than along the south coast. Really liked Akureryi though.
But we ended up forgoing alot of the stuff out along the NW peninsulas. Shivo might advise better if he's been twice.
Go in winter, wait till mid november until the ice caves have formed, and pay the few bob to hike a glacier. Stay out on the glacier overnight if you can.
I'll definitely go back. Its just a class country.