If you're interested, just jump in and enjoy. If at the end of the build you're close but not done, often a short extension is granted. A few days to maybe a week. Just have fun and maybe lean from the others or teach something by others watching what you do.
Excited to see a new 'face' drawn into this madness; group builds. As for time to complete, the build is a 6 month-er (5-1/2 left). Since I am making the rules, I will absolve any fees, unless you entry beats mine in the unofficial judging, Then hide your address!!