Based on the pictures, it appears to be massive in size and really only suitable for your reel stand or a bowden type setup. It doesn't appear as it would be easy to mount on say an E3D Titan extruder unless you had it in the bowden configuration. And your board/kit looks like it relies on a reel be supported by the flange which is not really the best method of holding a payoff.
Realistically, I'd have to suggest you find a way to design something smaller in size that could hang on a small PTFE tube above a direct drive extruder, or something that is light weight and wouldn't add a huge mass or object on a X carriage.
Good luck with it either way, what you have might work but really doesn't seem practical.