Peeing standing up is not that hard. I learned shortly after squatting in the snow, touching my butt to said snow, and nearly making a mess when it startled me. Takes practice, and it's hard to convince your body at first.

I had a little implement I made from those spoon things you use to give liquid meds to kids. I just drilled a hole in the end. Easy as pie, and free since most pharmacies give them away with their name on it. Oh, if they only knew.