It's not difficult it's impossible. Everything has to be flown in. The locals think Zegna is the ultimate shit -- a large amount of this gets made up in the workshop and the mediocrity in comparison to the retail cost is mind-bending. Zegna is a private joke among tailors -- they know its a circus.
Here, the wedding market -- cost-conscious, always in a hurry, oftentimes black, customers in their mid 20s (first time in their lives they're having clothes made instead of buying from a mall) -- are served by wool-poly blends. The executive market (I use the word executive in the sense of top management) is dominated almost entirely by Zegna & Loro Piana.
English cloths have vanishingly small market share.