This i could do, actually.
You guys might have to wait until the next full client/server update. i can add all the additions in at once then (the countdown and potential coin drops), that way i dont have to edit multiple times, as editing 30+ bosses is a bit of a job to do.
Also, due to the amount of bosses there actually are, the countdown would probably be more like 100 (so 2-3 runs of them)