How much does a new gearbox cost?

Excuse me, could you please clarify the price range for a brand-new gearbox? I'm in the market for one and would like to have a rough idea of the cost before proceeding with my purchase. Is there a standard price across different models, or does it vary depending on the make and specifications? Additionally, are there any hidden costs or additional expenses that I should be aware of when budgeting for this purchase? Thank you in advance for your assistance.