To anyone interested I feel sufficiently confident in getting past Hr7 now. I have the Demolition Bow and my Nargcuga set upgraded and gemmed to the skills I believe I should have. All I need is a dedicated team to get me past the Keys I still need to do and Nekarkos. I've created a Hub and here is the ID for those of you that want to help me out.
67-1304-4174-4714