I would not wear a PC, as Jock has said it is NOT the correct ensemble for a funeral, I've seen it done but that does not mean that it's right. If you can borrow a daywear tweed that would be best, however as it is Arizona perhaps a shirt and tie is the way to go. Again I'll deffer to Jock her and say the Black tie and hose would be best if you have them, of course you could go with a waistcoat too if you have one. If it were me I'd go in something like this: