Hi Neil
I have V8/Hotstox results for Swindon on 7/4/2002.
H1: 222, 58, 113, 391, 281, 244, 575, 159, 122, 44
H2: 259, 443, 113, 391, 122, 58, 244, 72, 210, 204
Final: 391, 244, 113, 575, 159, 72, 259, 131, 44, NoF
I also have results for Wisbech on 8/7/89 including a combined Hotstox and Spedeworth F1 All comers but looking at your list I assume you have those.
I may have more but I've not had chance to check all programmes yet.
If it helps I also know that the last race at Baarlo in 1992 when the Hotstox raced at Nijmegan and Baarlo was won by 96 Pete Morris.