Glad you found some good tailors! Look forward to seeing those pics!
By the way, John Cooper is a pretty good fabric but they have outsourced their production line to China. So I'm not entirely sure if charm has charged u a premium more than what u need to pay.
According to my distributor contact, the fabric price should range from HKD 450 to HKD 550 per yard from what I remember. Juz my 2 cents.
I puschased 2 John Cooper suiting from one of the most reputable fabric shop in Hong Kong at HK$280.- /yd which is super 150. It did not mentioned the country of origin. Sorry to say John Cooper is very poor quality and my comment even below VBC. I would not buy any John Cooper fabric even for odd pants.