An undead sorcerer in a good aligned party?

Certainly makes things tricky at best (and I'm uming 3.5 here from the level mix). First off, it's a given you need some method to hide your alignment from Detect Evil/Undead spells and the like running continuously (could be a short collaboration if not.) Your next big hurdle would be what to do when you're injured and the pally or cleric want to heal you - explaining why you'd prefer Inflict spells instead of Cure spells is a bit of a task... Also, what do you plan to do about sunlight? Unless your party's life is an unending drungeon crawl or you only travel in the Underdark, you gotta go outside sometime. (I solved a similar problem using odd-looking 'plate' mail which was actually ceramic incorporating soil from my gravesite, thus making it sort of a mobile coffin. As long as I made sure I kept my back to the sun, I was good-to-go. Might see if your GM would go with something similar.)