Ideas for awkward corner fireplace?

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We're getting a new gas fireplace and are trying to figure out some good surround options. We love floor to ceiling stone but it just isn't in the budget. However, something we really would prefer not to skimp on would be a raised hearth (maybe 6-10" off the floor) and then the fireplace right on top, so it gives the appearance of a wood burning fireplace. We still want access to the area where the fireplace is in case there's ever a leak (we're dealing with this exact problem right now) and we need to access the area, so we were thinking of doing a stone mantle with a wood beam and then maybe shiplap or something that we can easily get into later on.

The problem we're really facing right now is the awkwardness of the spot. There's a sliding door and a floor vent right nearby which, unfortunately, cannot be moved. The fireplace is also located in the corner, which is super awkward, but can't be moved since it's a townhome. We can find so many awesome pictures of fireplace surrounds when located in a normal area of a room, but not so much when it comes to corners.

Curious if anyone has some good ideas that I can share with my contractor? I attached some photos of our area and our hearth thoughts as well as some inspiration photos of fireplaces in corners or the general aesthetic we're going for (stone with wood beam is what my wife loves)!