Depends where you are located, if in oz then take a look at zbox web site to give you an idea of contactable vendors that support their product and ideas on kit types, clear fitting instructions etc etc.
You will tinker, that is a definate, but once sorted, ususally external nuts, bolts etc, the engine itself runs fine.
Initial tinkering are things like plug, plug lead, clutch cable, chain etc, all do-able upgrades as you go along.
Worth it in the long run cos ya save heaps on fuel costs and it's convenience for those minor errands a MB simply fits in.