Services are paid separately and prices can be negotiable (depends on the amount of service you order), but they typically start:
Payment can be done thourgh donation system via PayPal below.
To start any of this service we need access to your XenForo installation or FTP or both.
Make sure you get us an account with admin permissions. Post your credentials in a new thread in this forum (it's private and visible only to you and customizeXF staff).