Hey headsmashedin,
I happened upon a great deal last year, a friend decided he was going to upgrade and get a really high dollar amp. He sold all of his other stuff to raise the money for it, and I got a great deal on a Fender Hot Rod Deville 212 cab.
It's half the weight of my old Music Man, and sounds great no matter what I play through it.

I don't know how light you want to go, this one is 53.5 lbs. 60 watts and it will handle any room I play. In the videos I do, I don't even have it on 2, and I'm even going through the pedal board first.

There are probably even lighter options out there, but I thought I would let you know about my hot rod. I know it gives me the sound I want, without breaking my back.

JD