Is there anyway in which the following is possible in MS Project 2013 without creating two resource profiles for one project resource?

Jon Doe works on a project Monday through to Friday.

For the first three days on the week, Jon has a cost of £123.00 per hour (8 hours per day).

For the 4th and 5th working day of the week, Jon has a zero cost (non-billable).

I have tried to input multiple rates but cannot them to accumulate as I would like to do (see above). The other consideration is that if Jon only works between 1 and 3 days then these should all have a cost of £123.00 per hour. Anything over the 3 days should be zero costs.

I cannot think of any other ways in which this could be done as well. Any suggestions would be gratefully appreciated.

Regards
Andy