5/3/2023 UPDATE: I have been using this setup for about 3 weeks and its been performing great. I haven't had to design a new fan duct and my parts are cooling just fine.. I do have a 4028 fan so that does help with how powerful it is.. I did forget to mention that this adapter does require longer 2.5mm screws. You will need to purchase (4x) M2.5 X 8 screws to mount the Goliath to the adapter. To mount the 2510 fan you will need (at least 2) M2.5 X 12 screws
This is not my best modeling work.. Modifying .STEP files in SolidWorks can be a pain. I have added the .STEP file so you can make any adjustments you like.
This does fit, I installed it on mine and I'm very happy with the result! I don't like that the 2510 fan is not centered with the shroud.. but that was on purpose.. I didn't want to have to modify the fan duct, or the bed sensor mount. Now I'm not 100% how well the fan duct works.. I havent been able to do a test print yet but it looks like it will work just fine.
This does require supports. I added a picture of the print orientation.
I made mine so it fits the 2510 fan. I also added more bolting options on the top so you can rotate the Goliath every 45 deg.
Be careful not to cover the two mounting screws when bending the heating element wires.
If you have an VZ-Extrudort here is the mounting plate I used. https://www.printables.com/model/355751-eva-3-vz-hextrudort-low-extruder-mounting-plate
The author remixed this model.