Any good bass/soprano duets?

My friend and I are registering to do a duet and get graded on it around March, but we have yet to find one good for both of our ranges. He sings bass 1 and occasionally bass 2, while I am a soprano 2 but can hit relatively high notes with my highest being an E flat or so (really pushing it). I'm also fine with singing alto but my friend is strictly bass 1 and 2 not tenor. Preferably something under 5 minutes, and more choral type music, so no pop type songs. We can do up to grades 5 and 6. I'll take all suggestions!!

Live before we die from Addams family is good for that combination