Helena is right. There are much more efficient ways to run a server, but I guess that this is our best bet at this very moment. It is going to be more complicated when taking the free road.
The only way we would be able to run a server without hamachi and be 100% legit is
1) Orange is able to access a computer 24/7 and whenever is possible.
2) Someone else does it but Orange still takes credit for being owner :L
We'd also need donators and someone able to pay for the monthly fee of having a legit rsps.
This is from my knowledge, so if I'm wrong in anyway I am sorry.
Since we have the problem of Orange not being able to access a computer other than his cellphone we are stuck with Hamachi right now until we find a better way that works for us.