I'm not too keen on the Aria, but I've never heard one. As long as you don't think it's a bottleneck it will serve you ok.
I'm of the sort that thinks phono stage is just as important as the tt. If I had the Classic I probably would upgrade my Modwright.
Your tt is endgame so now you have to...
Budget?
SS I would second Sutherland. Also check Hegel, Lejonklou, Lehman, Rothwell also. Maybe Whest.
Tubes would depend on what your dealers carry but I like my Modwright and my Tavish Adagio wasn't far behind. Maybe Rogue Audio Ares too.
I wasn't joking about the Luxman, maybe the less...
Changing speeds is not an issue for me; just move the belt to the lower part of the pulley.
It's not like you have to access a sub-platter and it takes like 2 seconds.
The ADS is nice though and I've thought about it. Do some reading, I think the older version (SDS) is supposed to be more...
If I was you, I would just wait until you get everything up and running.
Decide then if you actually need and intend to use any optional stuff or add ons.
You may decide the acrylic dust cover is a PITA, the plinth is so heavy you don't need any vibration stuff, etc.
I haven't checked the weight...
With the screw down you have to stop the motor to change records/sides. With the weight, if you're like me, you just keep the table spinning. Depends on your modus operandi...I forgot to add, they supply a washer to use with the screw down; I don't use it with the weight. Couldn't figure if...