Congratulations! I've listened to a pair on display at a local dealer's shop twice (they are well broken in) and they are wonderful speakers!
You have more than enough power for those beauties as they are very efficient and you have those nice 7BST's in place.
I totally understand needing some help to unload, unbox and place them. At 96 pounds each they aren't exactly bookshelf speakers!
I'd not jump through any more hoops just yet and let them settle in before you go on to what's next.
Just to help put a few things in front of you to consider as next steps:
1. Speaker cables. What do you have now from the Brystons to the Aerials? My Aerial 8's improved a bit with a bi-wire arrangement vs. using the connector plates. There was an improvement in detail, spacing, depth of the tweeter and mid-ranges and the bass tightened up considerably.
2. Are you running stock power cables to the Arcam, Bryston(s) and Conrad Johnson gear? Consider an upgrade there if you are.
3. Lastly, what about the rest of your interconnects? Are they all WW?