Hi there,
First of all, you need to say which part of Scotland you wish to see.As someone has already said.....it is a country,and takes some time to explore.
The West is beautiful,BUT the midge season is from the end of May to the end of August,so choose your times carefully.
The South -West ( Dumfries & Galloway ) is uncommercialised, but again a lovely area to visit.
The North of Scotland has empty roads, which if you come from the busy south are a joy to be on.
You need time to see an area properly,last year we took 3 weeks to do just a small area in the north -west,and this year we are completing the journey,which will be another 3 weeks.
Let us know what your requirements are,and maybe we can help you.