Short answer
The European planning figures are €420 / €550 / €770 by commission tier. A written quotation confirms local currency, cloth, tax, delivery and any adjustment terms for each city.
In bespoke, guide price is not a style preference but a decision made with your tailor — recorded in your Fit Passport so the next commission starts from the same understanding. Ask about it at your fitting; the honest answer includes whether it serves your line or is merely tradition.