Solar Bahamut has several technical details that need to be considered when creating a replacement. 

• Despites its appearance of flying/floating, Solar Bahamut is classified as a terrestrial creature.

• Solar Bahamut is affected by in game /petsize commands.

• Solar Bahamut has significant background downscaling. Its true size is scaled down to 40% when set to Large.

When thinking about what kind of creature you want to use for a replacement, think about some details about the creature.

• If it's a terrestrial creatures, does it have a movement animation? Some terrestrial creatures, like Menphina with Dalamud, are stationary and thus do not have movement animations necessary for a terrestrial creature to appear to be walking or running. This is usually not an issue for floating/flying creatures that can get away with using their idle for movement.

• Does it have any attack animations? Mounts do not usually have attack animation unless they are a variant or used in combat somewhere in the game. This can make creating a replacement far too difficult to execute well, which may result in me turning down the commission request.

• Does the creature have particular attacks that you already know of that you can see replacing particular abilities that the summon has?

Creature replacement mods are an advanced asset replacement that can be difficult to calculate a price for. Their price is considered separate from the job that summons them too. Estimate to be quoted $5 for each core component and $5 for each Ability Component.

For a full Solar Bahamut replacement expect to be quoted around $50