I bumped into an eBay listing for what appeared to be a 3rd Rail N&W K3 w/ a Y3 tender. The description was that it was a 1 of 1 (scratch built) custom for a NS executive. I emailed the seller and included a link to the original 3rd Rail listing for the K3. I received a response insisting that this was indeed a 100% custom built by Mainline Models in Texas, and not built by 3rd Rail. I had never heard of this company, nor had I seen them mentioned here.
Is anyone familiar with Mainline Models? Do they indeed build custom scratch built brass locomotives? I thought it would be of interest if indeed this were true. Perhaps this would be an alternative source for a scale correct N&W S1a tender.
I hit their website. It looked to me like maybe they do custom repaints of MTH/Lionel etc. and then put them on a display base w/ a plaque and Plexiglas cover.