7 days in PNG

I’m looking to spend a week in PNG in May. I’m male British 45 and well-travelled. I travel solo but usually book a driver to show me around. I’m into local culture but not trekking etc. In a week where would you recommend and can anyone recommend a company that will provide a good safe driver?

where are you hoping to go to ?

you cannot really drive anywhere from moresby - save the sogeri, varirata park and the start of the kokoda trail

You will definitely have to fly anywhere interesting enough to fill a week.
The Highlands and the Sepik are the two main regions for cultural visits, with the former being far better suited for drive-around tours.