Visa: We got ourselfs a 30 day KAZA visa which is valid in Zambia and Zimbabwe. This makes a lot of sense even if you do not want to got to Zambia in general but if you want to visit the Victoria Falls on both sides
Carnet de Passage: As we travel with the CdP we used it but you can also get a temporary import permit (TIP) at the border.
Insurance: We already had the COMESA insurance therefore did not have to pay anything
Zimbabwe is a very instable country and therefore you have to prepare before you go. Check what is going on regarding protests, availability of food and petrol and how you can pay in the region you want to go. It is totally worth to go as the people are soooo nice and even with a motorbike you manage to find petrol. We just made sure that we filled up our jerry cans before we went in and also took some more as spare so we didn’t need to organize a lot while there.
Here some very country specific information:
There is no way of getting money at the ATM therefore bring enough USD and only change a little of them into the local currency to pay tolls and other small things. There is a way of paying with Eco cash (via mobile phone) but we did not do this as we only stayed in the country for a short time and it often does not work anyway
20 hours a day there is no power, so charge your stuff whenever you can