This is a design I remixed from another design, but adjusted to fit this printer and the spool mount that the printer comes with.
Use V3 if you can't go above the top of the printer but use V1 as it will be best to get the most printing volume.

V2- Added angle to the piece so it will hold the spool higher up, practically level with the top of the printer.
V3- Shortened the space between the hole for the spool mount and the nut. The screw didn't quite reach all the way unless it was tightened down a lot.

Directions:

1. Insert both M5 Nuts into the back where the spool will be attached.
2. Insert the 2 M5 Bolts through the stock spool mount and thread them through the whole on the slanted side until snug with the nuts previously inserted.
3. Insert 2 M3 T Nuts into the rails at the top of the printer by removing the 2 M5 Bolts that hold the side rail and diagonal support stick.
4. Finally, screw the 2 M3 Bolts into the top of the 3D printed mount and thread until snug.

Extra Materials:
2x M3 T-Nuts
2x M3x15 Bolts
2x M5 Nuts
2x M5x25 Bolts

I got the files for the parts on the extruder head, they might need to be slightly adjusted but I was able to make it work.
Glass Spine Design on Printables:
https://www.printables.com/model/447324-longer-lk5-dual-blower-direct-drive

I got an extension cable for the stepper motor from Amazon:
https://www.amazon.com/gp/product/B0CQ4MMNHT/ref=ewc_pr_img_1?smid=AAL4ATA1M5G58&psc=1