Consider Pletscher. It's about the same price as the Portland rack.
https://www.rivbike.com/collections/...cher-clem-rack
The original Pletschers were pretty wimpy and had only one pair of stays, but really they were the only racks around when your Raleigh was new. The new version is much improved since now has two pairs of stays, but it retains its vintage looks. The mousetrap was great for holding your brown paper bag lunch...