Costs and time for certification

Answer:

Without detailed information about the certification scope it is not possible to give you a precise answer.

Regarding costs, what I can tell you are some cost issues you should consider:
- Training and literature
- External assistance
- Technologies to be updated / implemented
- Employee's effort and time
- The certification process

These materials can provide you more information:
- How much does ISO 27001 implementation cost? https://advisera.com/27001academy/blog/2011/02/08/how-much-does-iso-27001-implementation-cost/
- 5 ways to avoid overhead with ISO 27001 (and keep the costs down) https://advisera.com/27001academy/blog/2012/06/19/5-ways-to-avoid-overhead-with-iso-27001-and-keep-the-costs-down/
- How to Budget an ISO 27001 Implementation Project https://info.advisera.com/27001academy/free-download/how-to-budget-an-iso-27001-implementation-project/

For the duration of the implementation, use this Calculator: https://advisera.com/27001academy/free-tools/free-calculator-duration-of-iso-27001-iso-22301-implementation/

These materials will also help you regarding ISO 27001 project:
- Book Secure & Simple: A Small-Business Guide to Implementing ISO 27001 On Your Own https://advisera.com/books/secure-and-simple-a-small-business-guide-to-implementing-iso-27001-on-your-own/
- Free online training ISO 27001 Foundations Course https://advisera.com/training/iso-27001-foundations-course/