Did anyone do a math for runner island?

I wanna know the actual cost for the lapis dragon and maybe heroic chest. I haven’t seen a chart so far

I want the actual math so that I will know if it’s worth it to get the stardust dragon path for extra flight stamps, coz it’s either I’ll get the geist dragon because it’s a vip dragon or hope that I’ll get more in the runner island.

Like, do I need to get extra stamps from that limited path to get the lapis dragon, or there’s no need and the stamps from missions to get it?

P.S. i missed like 7 pinwheel worth due to missing 1 pinwheel in some runs with a super crazy hitbox obstacles.