That sounds kinda strange to me. Allowing the muscles to go through rigor is not the same chemical process as aging. Debone, then age if it matters to you.
Deboning is intimidating for those who have never done it and I understand the hesitancy, but it's totally worth it. If you don't want to do it at night, gut the elk and at least grab some choice cuts, debone one ham, then come back in the morning. It's certainly easier to do with daylight.