serpentine conversion recommendation

My recommendation is don't do it.
I was just coming on to say just the same.
One of the advantages of separate belts is that you rarely lose em all, and you have a better chance of getting where you're going without consequences when one of 3 or 4 belts break, but when your only belt goes you're screwed.
On my older stuff I've lost 1 of my alternator belts but there was a 2nd one. Or my ps belt or when my alternator belt went I still had one pulling my water pump so I wouldn't overheat.
I get cars towed in all the time that people can't steer, they run the battery dead, AND they overheat because they blew the only belt the car has....