Well, I've done it now. I finally had some free time yesterday, so I started pulling out the interior of the 170. I only got the back half out (side panels and headliner from the back seats to the baggage compartment), but it was a lot of nasty stuff. The carpet that was up the walls I'm sure was leftover from a previous owners house in the 70's. The headliner was in decent shape, but it's going away, and the fiberglass insulation behind it was a mess. The last time someone re-did the interior, they used that silver reflective insulation that feels like bubble wrap. There were three layers of it between the side panel and the skin of the airplane next to the rear seats! Here are a few before shots:
The back area - BAS folding seats covered in luxurious faux fur will get recovered. I will be installing an extended baggage kit (I talked to the guys at Airglas, Inc.and they say their carbon fiber kit will have the STC for the 170 "soon", so hopefully...)

Here is the front before shot. The seats will be recovered - I really like what Rob and Greg did with theirs. I won't be re-doing the panel at this time, but it's next in line.

After ripping out the interior. The carpet on the floor will also be replaced, but it was easier on my knees to leave it in for now.

Here is the pile of junk so far:
