Hi pgamboa,
I know it's been a while since this post, but I've finally come across a tan leather seat on eBay and it just arrived today. My next step is to find the "ashtray" and trim piece you mentioned, but in the cocoa color if it exists. I am also going to order the harness you linked, but wanted to check if you have the other pieces to try to consolidate orders.
Also, based on your pictures, I took it that the subwoofer was mounted in the floor, but after doing some more research I learned that it's a box within the console. Can you expand on what is in the photo of the trim piece near the gas pedal to the right, looks like a speaker. I guess I have to figure out a solution for relocating the sub. Maybe I can build a box to mount in place of the ashtray our something.
Appreciate your help, you seem to really enjoy helping people with these topics.