The FAS2050 can run at most ONTAP 7.3.7, so cannot be supported for a 7MTT managed transition. We're very happy that you've remained a NetApp customer, but we haven't sold the FAS2050 for 9 years, so the generation you skipped in the middle probably would have been one which could have made an easy transition between 7.3.x to 8.1.x and then to 9.6P7 or later.
So you will need to manually create the new shares (PowerShell is likely to be your friend) and then ROBOCOPY, XCOPY or XCP the files across from the old system.
Snapmirror is another way of doing it. If you upgrade you 7 mode to 8.1.4p4 and above you will be able to use snapmirror to mirror the volumes to cluster mode. later you will have to recreate the shares. 7-Mode version requirements for transition
SnapMirror Interoperability between Data ONTAP 7-Mode and Clustered ONTAP 8.x or ONTAP 9: It is only supported to mirror data in the direction from Data ONTAP 7-Mode to Clustered ONTAP 8.x or ONTAP 9 for the purpose of transition to Clustered ONTAP or ONTAP 9. See Transition from 7-Mode for more details. It is not supported to use SnapMirror or SnapVault in the direction from clustered Data ONTAP or ONTAP 9 to Data ONTAP 7-Mode.