Vera Plus and Alexa ~ Harmony Hub Only? Or Elite Required?

Getting ready to upgrade my Harmony 900’s (starting in Family Room) to go to Alexa Voice Control combined also with my Vera Plus Controller.

Do I need the Elite remote? Pretty sure the 900 won’t work with the Hub but I hate the lack of numbers on the Elite for fast tuning.

Will it control my wall mounted Plasma without a blaster dangling on the side of the TV?

Even for my AVR, the blaster would have to be slightly outside the cabinet.

Can the blasters work over WiFi or Bluetooth or do they need to be wired to the hub?

Any good guides on setup and control along with Vera Plus integration?

TIA

Should I post this in the Alexa Sub Forum too?

Anybody know?