CPF and hourly pay

[LTS]

I am offerred a part-time consultancy job on a hourly pay. I am in the process of obtaining PR. Technically speaking I will not be employed by the employer, but will be paid for my services rendered.
1) Does anyone know how the CPF contribution will apply after I become a PR?
2) Would it be better to set up a company who will then bill the "employer" for the hours or is this not needed?

[evehow]

See www.cpf.gov.sg  for PR rates.

Do you have a contract with your employer?