Hey Kem,
Who did you go with in the end? I'm looking to build a raised platform with storage too. I don't even need any furniture to go with it, or even hydraulic lifts. Just need to be able to lift up the access door to the storage area below will do me fine. I've even drawn up the plan with most of the measurements in place, but I'm just not certain on whether or not there's enough support etc.
For this kinda job, I would think just a handyman/carpenter would do, rather than needing to go to an actual furnishing shop. I'm in TKO area, so if anyone has any recommendation, it'll be much appreciated.
Attached a couple of images just for an idea of what I'm after, in case it helps.