In the UK there are 3 main manufacturers of the 289 shape:
Hawk Cars - A variety of versions, ranging from donar based cars to accurate in every detail options.
BRA - Not producing at the moment. MGB based, slabside.
Thunder Road Cars do a very good conversion from 427 to 289 FIA.
There have been several, other low volume manufacturers over the years, all based on the MGB. From memory, these were; KD Sportscars, Aurora and DJ sportscars (makers of Dax 427). There could well be more - correction or additions to the list are welcome.
How many other manufacturers (past and present) are there worldwide? Who are they? What are their cars based on, how accurate etc?