1. Is zencash secure nodes stil in alpha phase?

2. We have a guide for setting up one secure node, if one wanted to have more secure nodes, do you have to have a vps for every node, or can you have lets say 2 or more nodes on one vps?

3. It says that the requirements are 4 GB ram and more, solid cpu, windows 7 or better. But if you have more secure nodes say 5, 10, 20 or even a 100 do you have to have better system and hardware configuration that this?