1) emblems - I had good luck at Yearone
2) carpets - ACC from rock auto
3) door linings - also legendary auto interiors
4) weather strips - Metro Moulded Supersoft from Summit racing, but they will match prices from other dealers.
PG classic is where I got some of interior dash trim pieces...
What parts are you looking for?
Gauges?
Legendary Auto Interiors has a great choice for seat covering.
Depending on your car, Dakota Digital gauges are really nice.