Question Multiple simulators top gear setup?

Hi, after just completing my first 3dof project, having only been introduced to the idea of simulator building in October 2022, I am about to embark on my next project. So I am very new to all this!

But, after having some real fun, with inviting friends around and taking it in turns to set best lap times. Two things became apparent that don't seem to have been covered by this forum!!

1 - I feel it is necessary, crucial infact, to set up my own top gear leaderboard wall. When ones visit, they will all get the chance to drive an average priced car around the track one lap and get their name chalked up on the board for all visitors to mock and compete with.

2 - whilst I was about to embark on a new 6dof project, it seems to me, as requested by my friends, just build an identical 3dof next to the other and have side by side simulator races using 2 seperate computers, to race each other, almost going for a Mario kart style of atmosphere.
Has anyone tried this? Would I be able to use my simtools login on both machines at the same time? It just sounds to me like a lot of fun?
Any thoughts

Would I be able to qualify for a free build licence if I upload my build as I go? I missed out on that on the first build.

Thanks, I will take a closer look at those t&c's