Yep like Mark90 I have a mwb Iveco…35s12 (3.5t single wheel 120bhp if you are befuddled by the model numbers…50c15 would be 5t twin wheel 150bhp)
I find the gearing pretty good, it’ll cruise at 70mph without revving its nuts off, 60mph is pretty relaxed. However, they are quite noisy overall, the standard stereo doesn’t really cut it once the bulkhead has been removed! I drive a Transit with a towing diff (low ratio) and that is screaming once you hit its restricted 70mph top speed.
Worth noting that the mwb Iveco is 6 metres, a 6 metre Ford/Fiat etc would be a lwb.
I bought mine for its towing capacity, and its cheapness compared to other vans is a bonus, today I would get the post 2006 facelift one which has a dash mounted gear lever which means you can swivel the front driver seat. If I didn’t need the towing ability, I’d probably go for a Ducato/Relay for the much lower floor and squarer sides.
Mine has a fixed rear bed (that hinges up for carrying silly stuff like the odd cement mixer) with space for two/three bagged bikes under, small toilet room, two belted rear seats and the kitchen has a large fridge/gas hob and oven, and sink-drainer. With that setup you can’t really shoehorn in a shower room, assuming you wanted a fixed rear bed with the garage space you would need to change the kitchen to a more basic 2 burner hob with a small sink.
Pics (first half was the first layout, second half is the current (much better) layout:
http://www.flickr.com/photos/ojr/sets/72157619846157047/show/with/3638455655/
I also founded Ivecoforums.com which has proved popular:
http://www.ivecoforums.com