I'll add the chassis numbers from Matt's site when I get round to it

So if you have any enquiries about a particular Coupé I will at least know if I have a pic of it.
The first few cars are well-known, AUE 38B which of course was an Ogle not a Reliant, BUE 441B and 442B.
These were chassis 0002, 0003, 0004 respectively (0001 was scrapped, no photo found).
Less well-known was BUE 443B (chassis 0005), here is a photo of it at Scarborough Hill Climb in 1969.
Matt thinks chassis 0006 was BUE 444B but was scrapped, no photo exists
From early days Reliant tried variations on a theme with the blue IRS car DBF 853C, chassis 0007
and the very Ogle-style nose of 'development car' HOO 465B, chassis 0008.
There are pics of about 400 different cars so yours is probably among them ...