These people seem to have a bunch of NOS books at reasonable prices. Lots of other rare makes too.
Jarrid
http://members.aol.com/vossmotors/sz.html
SUNBEAM NEW ITEMS $ $ 0 Tiger 260 Shop Manual -1966 $ 42.84 Tiger 260 Parts Manual - 1966 $ 36.74 53-55 Alpine/Talbot 90 Parts incl. Mark 2, 2A, & 3, $ 42.65 59-68 Alpine Parts Manual: Series I-V $ 44.84 59-68 Alpine Shop Manual: Series I-V $ 44.84 Rootes Competition History by Michael Fostec $ 34.95 $ SUNBEAM USED ITEMS $ $ Alpine I-IV and Rapier III-IV factory service manual - used original $ 13.95 Tiger 260, Alpine, Rapier, Minx, Super Minx, & Imp; Glenns service manual - used $ 4.95 Sunbeam Alpine, Tiger 260 V8, & Rapier, Owners Handbook of Maintenance & Repair, by Clymer, Printed '76, used $ 13.85