I had to clean the same type of thing when I picked up my 2000 SVT.
I removed the center console and just washed that in the kitchen sink. That's the easy part.
For the carpet I used a Bissell steam cleaner and alot of elbow grease. It's alot of work but in the end, the carpet looks brand new.
Depending on how bad the carpet is you can just spot clean with some regular household carpet cleaner, brush and some towels.