Welcome from Bay area but raised on truckee river.
If you cant get ahold of any parts you need, feel free to give me a call and I can get you a lot of what you need. I have a bunch of stock 1st gen truck parts.
925-270-5314 Josh
Enjoy marlins site bunch of good guys here. If you need smog help I can maybe walk ya thru it over the phone if need be. I have an 82 which has pretty much same carb and smog as an 81.