americanmuscle is an awesome site.
if your looking for factory replacement oem interior parts, try latemodelrestoration.com
as for your tick, it may be just be an exhuast leak...when you run the seafoam through the vacuum line, check for any smoke coming out of the engine bay.
if you dont find an exhaust leak, and the seafoam doesnt clear up your ticking, you can try an oil additive from autozone, etc.