From the 1986 Speedway Yearbook:
Keith John Millard b. 18/11/1964, Newent, Gloucs.
Exeter (NL 1981-83)
Peterborough (NL 84)
Rye House (NL 85)
Swindon (BL 82)
Poole (BL 83)
Exeter (BL 84)
British Junior Champion 1983
I can't confirm, but I think he retired, from the shale at least, at the end of 1985.
Can't help on the footage front though, sorry.