Please avoid multiplying that kind of empty posts guys. This is an instruction thread, people will look for informations into it, thank you for keeping it clean.
Sorry if this is a stupid question. Do we have to make the rockets ourselves? If I see a picture of a space station and want to rebuild it. Is that allowed? Sorry if this was mentioned somewhere earlier.
You should design and build your own rocket and station. If the station or rocket is based on real life (e. g. ISS, Proton rocket), then sure, you can copy them.
Yes, original builds, which can be wholly original or based upon other things from real life.
The important part is that you designed it in SFS yourself.
I suggest that you have a look at the tutorial: Voyager quest: tutorial
If you still fail, don't hesitate to post your failed attempt so that we can advise you.
Not too difficult, simple is best look at other people's rockets for the mission and take pointers and design a rocket from that. Make sure your assent angle changes in in a smooth and constant way in order to stay efficient. When doing your final burn make sure you are angled exactly on the direction of travel otherwise your wasting fuel. If your still close but just not getting there feel free to post here for some advise.
No, because you must be above the threshold speed while being at the required distance from the Sun, in this case 7250 m/s or above at 11.360.000 km. You're approximately at 10.360.000 km. If you time-warp until you reach the correct distance, you'll see your speed drop below the threshold.