When buying online it is important to do your homework with the site you are buying from, then you can concentrate on your goods.
Putting a fence around the garden is a good way to achieve privacy. If you choose a 6’ fence you will have a good deal of privacy. This can be stained to a colour of your choice to make it look attractive and also help to protect the fence against the elements.
If you erect greenhouses in the garden do not put them too close to the fence. Another way to achieve privacy in the garden is to grow some tall ferns. However they can take up a lot of space and will regularly need to be trimmed back. Then you have the problem of disposing of the branch clippings.