I will be going to the marina probably next weekend- !00 miles from home.
I would measure it if I can and if you tell me where abouts you plan to mount the new name decal? I could be more accurate. Would it be just above the transom mount for the ladder??? My boatname is in that locale- and is somewhat eclipsed by the latter in the retracted position. The home port is just below the mounts.
for what its worth, I recently measured for a bimini- and the diagonal rear cage rail at the lower life line loop is 98 inches(+/- 1 inch) side to side( mount to mount). I suspect that the coming at the transom top of coaming may be 89-92 - just a guestimate.