soft window targa kit should I build them

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after getting my new 911, while going through it fine a fine comb,, I find out that it is a soft window, that had been changed to a fix window ,, after some research I found that the hardest part to find is the handles , the rest can be easily made, after research I found a unlimited source of the handles ,

so now I am considering making a kit, but couple of questions

how many people would be interested ?
what is a fair price for a kit that would include NOS handles and reproduced other part , without the vinyl ( it easily available from other vendors)

any opinion?