I've done mine a couple times, its really pretty easy. A few general notes, things to keep in mind:
1. A chassis crosspiece is right below the oil drain plug. You either have to deal with oil pouring across and down it, or fashion a work-around to this. I've heard of some installing a Fumoto valve, others just put a piece of cardboard over the chassis crosspiece. I just let it pour, put the drain pan right under, and wipe things off with a cloth or two afterward.
2. Once you crawl underneath there, its actually pretty easy to get to the drain plug, filter, etc. down there. A LOT more room underneath to maneuver and get to things than I'm used to with every other vehicle I've owned. :)
3. If possible, get the new oil in 1 quart containers, not one of the large 5 quart containers. With ours, there is barely enough room to put on a funnel and dump in a 1 quart container right at the filler. No way to do it with a big 5 quart bottle. Only way I found to do it with a 5 quart container, was to attach a long hose to the funnel, and sit the funnel up higher near the windshield wiper, and pour the oil in there. This makes the oil very slow in going down into the engine, and you end up holding that 5 quart container up high for a long time. Much easier to just pour 7 single quart containers in right at the fill neck.
Anyway, hope this helps. This is one of the really nice things about owning a V10 gasser MH, is that oil changes can be done by yourself fairly easily and economically.
