Hi marginatus thanks for the feedback. Ive actually been toying with both of those ideas a bit and have a version that looks eerily similar to your drawing. The Abellan denton does both of those things pretty much like that. I do prefer a traditional bottom of the gun line wrap/guide (was planning on putting a hole in it for the line) but with the side line release it may make sense to offset it towards the side the release is on.
I should also mention I would like to eventually remove horns from the places opposite the line release so there is only a horn where the wrap will go.