I don't want to butt into your business, but depending on why you are in that wheelchair, it might be a really bad idea to be lifting anything much. I'll make an effort to keep from intruding, but please don't hurt yourself over a thing like this; life right now is a picnic compared with what it might be like if you cause yourself further damage. I suspect your daughter would agree with me.
Thanks for that URL - I've downloaded lots of stuff, and most of it is interesting.