Hero help

Just got Destroya to lvl 45, want to boost the HP ability.

Problem is my only 2 orange medals are for Shoota and Dawn.

Shoota is lvl 35 and need the medal to awaken.

Dawn is low level but I have the xp to boost him and awaken him as well.

So need help deciding if the HP boost is worth using those coins?

That said, I get an orange medal in 12 days from project hero.

My 45 Destroya is my frontline on my main class APC.