Congratulations! First, on taking a step on the career ladder and second, on getting someone else to pay for it.
As to your question, the only people who can give you a definitive answer are the licensing people at the CAA. But I'm afraid that it's going to be highly unlikely that you will get a dispensation of any sort from any part of the course. The basic training course has to cover something known as 'Common Core Content', you'll often hear people call it just CCC - essentially it's a syllabus for the course. These days to get a licence you actually have to follow the course rather than just pass the exams.
Also I don't know much detail there is in the current courses but back in the old days the knowledge required for met and nav was much higher than PPL standard - the exams I did were similar to CPL standard although not as wide-ranging.
Good luck with the training - enjoy it!