I want to go too but as said it's looks like no newbie run. I have quite a bit of experience in mud and vans are very unpredictable and fast reflexes is a must combined with experience as one mistake can be detrimental to your vehicle
We were there with our zuks on November 6 for a beach lime. This beach could only be accessed with 4wds.
If you guys attmept the alternative trail re the one that does not go to the mud volcano you should be fine...re enter from Bunsee trace swing right on top of the hill and eventually come out on Morne Diablo road.