Kevin,
Unlike other spares books, the one for the t/S6 does not mention the number of links in the roller chains. The rear chain is illustrated and I count 91 links. However, since 14 through 19 tooth output sprockets were available, the number of chain links will vary to suit.
No view of the primary chain. Gearbox input sprockets could either be 39 or 41 tooth, depending on if it is a S6 or T6 respectively. So again the number of links will vary (assuming the original sprockets are fitted.)
-Doug