[cdoubleoper]

I can assure you that your gamemode might never be done in 100%. There's always something new to create, just listen to the community and choose possible things you would like to feature in the next update. 7k lines don't matter, it may be even 500 lines aswell - it all depends on how you do it, if players are going to like it & overall gameplay which is basically one of the most important aspects of your server.
Good luck!