Hi Daniel.H
My advice is don't do it. Iv spent years wrapping show cars such as jags, mercs, lotus, bmw etc.
I now have a 110 CSW, that will be hand painted. Wrapping is quick and easy to do and with the right amount of skill can be a quick stunning effect.
However you must use a good quality vinyl to start with and the body work has to be almost perfect. Any imperfection will show and if you go mat it show even more. All the nice flattish panels on a defender make it quick to wrap but as said you also have all the rivets etc to cope with.
Plastic coat again works in the same way, every imperfection can be seen.
Also consider that you can currently wrap in another colour without the need to change the log book via DVLA, however the law on this is in the process of changing even if its considered a temporary covering.
Temporary is also correct for the fact that if a lack of fitting experience and the prepping isn't perfect the wrap will peel off, while of roading and in a car wash/jet wash.
Matt wrap shows dirt quickly, it can stain and any rub marks also stand out.
So now lets loo at the cost, a half decent job is going to cost around the £1500 mark, a paint job sprayed about the same, but a hand paint job half and if you need to touch a bit in you can any time.
So as I said, I wouldn't do it, but think carefully first.
I have some pictures of a b2500 pick up I wrapped recently in matt orange and black carbon fiber, they do show how it is done if any one wants to see them.