Hi , we have lids for this size tank and everything in between and bigger. There are a number of pictures people have posted within this thread that may give you what you are looking for.
How the overflow area is handled will vary based on the tank's construction. If the overflows sit at least a 1/4" below the top edge of the glass then we have the option of going OVER or AROUND them. Some have them covered in solid material for noise attenuation as well.
We strongly recommend at least one feed door (multiples can be ordered after initial checkout) for a lid this size. The lid will only weight around 10lbs likely, but longer/larger lids are naturally a bit more clumsy to remove on a regular basis. The feed doors are 3x5 in size so do provide a nice space for spot feeding and minor maintenance in the tank without lid removal. More doors, more convenience
Let us know if you have any other questions.