I have to go with these:https://www.castrads.com/cast-iron-radiators/ornate-radiators/king-768mm/
...and I would need 5 of them
There are many options for old refurbished rads.
By the way, the Heating Help forum is indispensable for anyone looking to do heating or cooling work on a house. Those guys were great when I had to replace a steam boiler.
Actually there are a lot of styles and designs. In my last house every rad was different. My plumber called it a museum of radiators. It will be frustrating if you need to find an exact match, but once you do refurbishing is quite easy. A high pressure flush and some sandblasting. I found a guy who did it for about $70/rad.