Best Place for Custom Controllers?

Hi fellow FK users, where are some good places that sell custom Xbox One controllers? When I say this I mean websites that allow you to create one from scratch and not just buy a pre-made design. I only have a budget of £120/$186 so I can't be going for anything too expensive.

As always, happy posting and have a wonderful day!

A scuf controller is the way to go IMO.

Shiver said:

A scuf controller is the way to go IMO.

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Those don't work with GTA V and Halo from what I've just read on Google, thanks for the suggestion though my man!

Basic said:

I got my controller from EvilControllers and I thought they did a pretty good job.

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I was looking into them earlier on, how long is the shipping?
They'll probably be my best option.