Ok ladies I need some help!

DH and I have an interview to go to. The job is at a caravan park in country Victoria.
The interview is being held at a coffee shop about 1 and a half hours away.

What do you think we should wear?
It seems to be a casual interview (it is friends of friends) however we still want to be presentable as the job is managing their carvan park and therefore the front people for their buisness/investment.

So... what do you think WE should wear?

Me - Black pants and shirt with collar. Black pants and nice top. Jeans and shirt with collar. Jeans and nice top.

DH - Slacks and shirt. Jeans with shirt. Jeans with polo top.

Eeek! Help...