Congratulations! And, how wonderful for you & your babe that your dh is on board. Many mamas-to-be aren't so lucky.
It's really pretty simple. Just wipe like a finger, from base to tip. I practiced EC w/ my youngest from the time he was 3 days old & I never really wiped his penis, only the few times he pooped & it got on it. Even w/ regular diapering (which I did w/ my older son, until he was 1), I just always wiped it like it wasn't much different than the rest of him. There's a sphincter at the end of it that is opened to pee & then closes, or so I've read. So there shouldn't be any poop getting into it.