One day I know I will write something in support of your silly ideas. Sadly it will not be today.
Rather than offer him and his family a house and a salary, why not offer the house to a western couple for a rent of 5 million a month on the proviso they look after your gardens and house.
You are well in front financially and do not have the hassle of having an Indonesian family to look after.
You put an Indo family in your house and you will have them forever.. and their parents... and the cows... and the .... and the..