a
round 100 meters more

poleman wrote

not a clear line of sight (LOS)
around 100 meters more

You can edit the post, That way you don't have to do 2
By not LOS not even raising the CPEs some meters
100 mts it's a short distance, can you cable that distance
If your answers are no, your fathers home has to have wifi signals around his home, is there the posibility a friendly neighbor shares Internet, if the answer is still no, is there a neighbor that does not have Internet, or want to stop paying for, would share his roof where you deploy the CPE and you would share Internet to him and to Dad, if your answer is still no, hack a neighbor and install a Repeater in Fathers home.
Ok, you want 2 things, share Internet to Fathers home and provide Internet to your garden, to provide Internet to your garden a CPE210 will do.

ok guys then if I go for the 210 how do I set up please

poleman wrote

how do I set up please

set up what? you need to elaborate.
its going to be a PTP (point to point) link from your home to fathers
In case you have the password of a friendly neighbor and he is going to share Internet, as you can read you need to provide info.
visit FAQs you will find all the info. need it here http://www.tp-link.com/en/download/CPE210_V1.html