I also have Lupus and RA, and yes, there are days that the motivation is NOT there. I may go weeks without actually stamping when I'm having a bad flare.
Yes, the lever punches are SO MUCH EASIER
In addition to everything mentioned:
Cropadile - much easier than pounding eyelets. Of course, with my hands, I can't squeeze it like normal, so I put one of the handles against the table and push the other handle with my hand.
I recently remodeled my stamp room and installed a bar-height stamp table with a barstool and foot stool, instead of a desk. Much easier because if you stamp standing up sometimes like I do, you don't have to hunch over.
I also find that liquid glue is easier on my hands, as I don't have to push down so hard to get things to stick like with the Mono (SNAIL) adhesive or glue stick.
And, last of all... GOOD SHARP SCISSORS, for when you have to use scissors. I have nice Fiskar's scissors, the reverse-open ones... they stay open all of the time, and you squeeze gently to close them, then release to open back up... you only have to work your hands for one direction (closed) instead of both like normal scissors (close AND open). They also have very big, straight handles, which are good for when your hands/knuckles are swollen. They are like
these, but not exact... mine are older and must be discontinued.