IIRC the batteries on the Graco are interchangeable with Dewalt and Makita.
My Fuji is the (only) model that they used to sell before they released the Q range. Over the years I have added and extra 7.5m hose, which massive reduces the temperature of the air that leaves the gun, and allows me to leave the noisy turbine in a different room (reducing noise and the likelihood of sucking in over spray). I also upgraded to the non- bleed gun that the miniMAte uses. Prior to that the gun used to blow dust around even when I wasn't spraying. I also added the Fuji whip hose, it is much lighter and flexible than the standard hose and reduces arm fatigue. Finally I purchased a RF wall socket. With the remote control in my pocket, I didn't need to worry about walking back to the turbine to turn it off once I had sprayed a surface. Oh and then I purchased more needles for the gun. Doing so almost doubled my initial purchase cost.
I was, and am impressed with the quality of the Fuji accessories but given that there are only a couple of firms in the UK that sell their kit, there can be a long lead for them if someone is out of stock.
I have never used the 2 stage MiniMate, I would be concerned about its ability to atomise waterbased paints. That said I have never used the battery powered Graco that I linked to. I last used an Apollo unit about 15 years ago, the quality of the hose was awfull, at the time it was push fit, now they use proper connections.
You might be better off talking to
https://www.spraydirect.co.uk/ and tell them what you want to spray.
Another alternative would be to hire a unit.