Report "I believe my New Bright Holiday Express train set uses series #384 cars, etc. (Logmill, TreeTop Tender, etc). I originally purchased the set through Dillards Dept Store. I am looking to expand the set by a couple of cars. I see that there are additional series #384 cars (Water Tank for example) but sometimes see the same car, but advertised as a Series #380. Does the #380 line of accessories work with my #384 set? Can't seem to find any info on the New Bright website. Thanks"