Nooooo!!! Broken Seat Switch!!!!

I'm having trouble finding out what exactly the part number is for the seat adjuster, or what It's even called on the parts number list.

I'm looking here: https://rivperformance.editboard.com/t7618-faq-the-holy-grail-of-riviera-part-numbers-diagrams#118520

I can almost guarantee you're going to need to hit a junkyard or eBay for the switch. There are a few on eBay right now but they're a bit pricey. A junkyard might give them to you for next to nothing.

Now I'm faced with the problem that if I do find a switch, how do I install it? I'm a small person, but there's no way my hand and arm can fit underneath the seat to do anything. I can't move the seat and take it out of the car like I originally planned so that I could clean it.

The switch actually comes out of the side of the seat. There should be 2 screws on the plastic panel around the switches. Then it all just pulls out. I hope we're talking about the same thing here....

That's correct as far as I can tell. Now, assuming I can find a seat adjuster at the junkyard, how do I go about getting the seat moved up so I can access the two bolts at the rear of the seat? I think I may be able to get to one right now, but there's not a chance I can get the bolt closest to the driver door.

You can try hotwiring the seat motor.