Lomart Cheeftah - front fork question

#1
Im been thinking about making the front fork on my Cheeftah wider to accomodate a wider tire, like a 15x6.5x6, I have many good sets, but they are too wide for my frame. Any ideas on how to (safely) widen the front fork on my bike? The rear will be easy, considering i will have to build a new swingarm anyway.
 
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