evaporator leak

I've been getting the "Check Fuel Cap" Message/Icon on my center display for the last couple of days. Double checked the O-Ring around the gas cap and it's seated properly and intact. Triple clicked it this morning in hopes that it's a mis-read and will reset itself in the next few days with...

I need to replace or repair the evaporator core in my 2012 Ram. All warranties are expired for this work, so my brother and I want to attempt this, as the price of having it done is out of reach. My biggest concern is pulling the dash away enough and getting the a/c box out from behind it, and...