I agree with Spiker re timings of adding in a CGM, it is vital to be able to manage a pump with blood glucose tests first. I changed from a Roche to a Medtronic pump about 4 years back and both the DSN and Medtronic rep told me to go away and get used to the Medtronic pump for 3 months before starting to use CGM.
Although a nice idea in principle, I think it would be quite a tall order to start pump use and CGM together. You would probably get better benefit from the CGM to iron out any problems once you have established your basal profile.
When I first started, I found it very different rather than either a miracle or disheartening, bits of my control were worse and needed adjusting, other parts -especially through the night -were quickly much better than on basal/bolus.
I wish you well with starting your pump.