The place to set a foundation is in Jerusalem! I refer to Sequila Christii our submission for the Fr Noris Opus.
When you think about all the buildings that come and go with age and disuse we should be able to find a old building to use. First things first, our commitment to our parents well being is an important priority. After a time we will have enough money to move to Jerusalem. Then look for a place if it is the will of God.
The problems like visa's we will leave up to the Magesterium, and God.
Why Jerusalem? The holy land is the best place for a catechetical institute it brings Jesus'life into focus, seeing the real places he walked.
This is what Benedict XVI wrote in his Lenten Message for this year (n.3). "Sometimes we tend, in fact, to reduce the term "charity" to solidarity or simply humanitarian aid. It is important, however, to remember that the greatest work of charity is evangelization, which is the "ministry of the word". There is no action more beneficial – and therefore more charitable– towards one's neighbour than to break the bread of the word of God, to share with him the Good News of the Gospel, to introduce him to a relationship with God: evangelization is the highest and the most integral promotion of the human person. As the Servant of God Pope Paul VI wrote in the Encyclical Populorum Progressio, the proclamation of Christ is the first and principal contributor to development (cf. n. 16)."
The beautiful gates of Jerusalem are well worth visiting and the prayer should be O God please open the 'beautiful gate' again so we can reinact your glorious entry into Jerusalem. Of course this does not mitigate tradition in terms of how the Jewish culture has a historical influence on the whole of salvific messianic providence.
Patriarch of Jerusalem