Paul:
We weighed a bunch of replicas at Carlisle a couple of years back.
Lots of comparison weights can be found here:
https://www.speedsterowners.com/forum/readmsg.asp?t=16709
Note: You may have to cut-and-paste after forum/ to get it to work.
As far as "Train weight" is concerned, though, There is someone who shows up at Carlisle with a trailer that weighs about 600 lbs., and he loads it up with another 300-350 lbs. and it pulls it fine, so I would suggest that the car weighs about 1,850 - 2,000 lbs, plus trailer at another, say, 1,000 lbs. for a max of about 3,000 lbs.
Gordon