The wall behind the chair is my target and runs perpendicular to the trusses.

You need to contact companies in that area that proved home and community based services to individuals with special needs and ask if they could use a wheel chair accessible house or have any other housing needs.

For instance off craigslist/ebay you could get:1080p projector for under $500row of three home theater chairs for $500 or lessTornado foosball for under $500Pool table sometimes for free if you move itpaint the wall for the screen and add a border, or buy a screen on amazon for $200 to $300You can build a pretty amazing basement setup for not much money.  

The stairs need to be completely redone and it's not possible to do a electric chair lift.

Or is it you don't want the cleanup requirements of a MJ smoked in unit -- that has not been tuned in 28 years (since 1995).Why can't the renter just sit outside in a lawn chair and smoke like a chimney (it's legal?)

You'll find a plethora this way without leaving your chair, but you might need to sort out more wholesalers from flippers. 

Think about the rocking chair test.School.

Actually, this is the same reason why I'm considering painting the chair rail and below of my stairwells dark, it will show less all the marks from tenants moving crap like bikes up and down.

We only do what I would call a "light" staging - dining room table, a few pictures on the wall, maybe a couple of chairs and coffee table, flowers, and that's about it.

OK to grab a chair.