Yes, the 718 works well with Pactor modems. You can buy connecting cables
However, the 710 is a great radio
and works very well with Pactor modems. Why do you want to change? It also works well on the ham bands (I assume that's what "I have my license" means).
Unless you're a ham who likes to cruise
the bands frequently, I'd stick with the M10. If it's just Pactor email
and maybe some net participation you do -- like most cruisers -- stay with the M710. You can program in all the desired frequencies.