I came across these and wondered if you might them useful. They play the individual parts and have a choir singing the other parts in the background.
Also, if anyone’s interested, I can provide sets of copies of all of Jacquie’s recordings, by part. Jeannie asked about this for the alto parts and one way of getting the whole set to play continuously is to copy the set into iTunes, if you have this on your computer. iTunes should then be able to synchronise with an iPhone. Otherwise there are free apps for Android phones that should be able to do the same. Or, of course, I could give you a set on a CD so you could play it the old way. Just email me if you’re interested – firstname.lastname@example.org