Hello,
If you are training for a mobility controller exam, using instant AP's isn't really a viable way of going about it.
The structure and hierarchy are pretty much the same, but the location of everything is very different and doesn't give you a feel for the customisation you can have on the controllers.
I would advise trying an Aruba SEEL lab if you have the access to it.
If you are just looking to practice the hierarchy, then it is possible, you still have to create the roles, AAA profiles and so on, but it definitely isn't an accurate representation.
I would definitely advise against using IAP's to practice for a mobility controller exam.
Any questions please let me know.
Thanks,
Ben