Got it thanks @GThiesen
So we would need to purchase at least one Aruba controller based or Instant (not Instant-On) AP and an Airwave license for that AP to be able to make use of the mapping software?
If they will let me start with just a single AP that could still be perfectly reasonable to have something close to the actual wireless characteristics of the Instant-On gear.
Xirrus / Cambium has some great free planning / heat mapping tools out there but it may be more of a challenge to determine what AP is comparable to the AP12 and AP15.