Cassp, I definitely sympathize... when health conditions preclude the use of more weighty gear, of course you have to compromise. No doubt, some day in the future, I will get to a point where I can't lug the G70 and its' case around either. But at least when that happens, I HOPE I won't deny that I AM making a compromise...

Strangely, though, for me, lugging a small heavy amp around is MUCH harder on my back than the G70 in its' case. I dolly the G70 vertically, and getting it into any vehicle is simply a matter of standing it vertically next to the tailgate, leaning the case so that it rests on the bed, and tilting the bottom end up and sliding it in. At no point am I ever lifting the entire weight. But a combo amp, unless you have a ramp, at some point you are going to have to lift the thing in... all 60 lbs. of it

I also make a point of resting my G70's case on a couple of chairs (or anything else around that is convenient) to lift it out or put it back in. That way, I'm not bending down too far... A combination of leverage and being smart has meant I rarely ever exert myself moving the beast! Anyway, preferring to play at least with ONE other person has always meant that the load is shared! Just one more plus to musical collaboration!
Sorry about your health issues, but watch yourself with those amps! You might be lifting more than the old G70 was, if you are not careful...