If you per chance are still in Berlin, have you seen the store SÃ˜R close to Von Truschinsky (who carries C&J, EG; JLP and Carmina +.
SÃ˜R have Kleman on display, apparently he comes 1-2 times a month. I would also recommend Atelier Fassan who have bespoke shirts, 24hr possible for slight upcharge. But mostly for their Maftei selection, I believe one of the Mafteis are there every other friday.
Posh might also be worth a gander, She does bespoke. There have been...