Swedish IT

I would welcome advice on the tax implications of contracting in a European Economic Area (EEA) country – Sweden. My questions are as follows.

My client is considering whether to accept a seven-month full-time contract to work in Sweden as an IT consultant. If he works five days a week in Sweden before returning home to the UK every weekend should I exclude the weekend days when calculating whether he has been abroad for 183 days?

Alternatively should I simply count the number of calendar days in the seven-month contract term (about 210)? As I understand it this information will be relevant to determine whether he is taxed on his earnings in the UK Sweden or both countries.

The client is thinking about forming a UK private limited company through which to carry on his work as an IT contractor. If he does this and...