IIRC, you can zone to Mara from the Commonlands and Antonica dock bells, so I set the connections from Freeport and Qeynos to avoid uhgly overlaps. The version I uploaded does use DXT3 for nice anti-aliasing.
I'll double check those bells and revise the overlay if need be.
Mara info does say the isle lies across the Buried Sea, which was historicaly south and jives with the rough location of Gunthak. I placed the isle in a graphically convenient spot