You'll no doubt look down at me patronisingly with sheer boredom in your eyes (and I know I keep going on about them), but how about a CV Squier
My Strat is stupidly lightweight, and the Teles are made of pine. The Strats are routed for humbuckers and I believe at least the neck pup on the Tele is the same, so they are eminently moddable.
I hear the GruvGear DuoStraps
are great for shoulder/back pain.