One of the highlights of TINGS is always Colin Allbright's display of vintage models.
This year, he brought along a huge selection of early Ian Kirk plastic wagon kits. I knew of Kirk's models in OO, that were the seed for the Parkside Dundas range. I'm pretty sure I've got a few in the kit stash somewhere.
Some will recall the coach range in both 4 and 7mm which were the mainstay of many a layout years ago. There are still models in the range not available RTR such as the LNER Twin and Quad-arts. I built the former for Melbridge Town years ago and have a quad still to do. I'm not much of a coach fan, but I do like these.
Looking at the N gauge wagons. I think that many would still stand up today with more modern examples. Maybe this is just the small size and my eyesight, but I can't see why not.
It's certainly an interesting display. I'm always fascinated to find a new range I didn't know about.