Wanted Stumpjumper 2000 Seat post and seat needed

[Jevo68]

Morning RB - first post on the site - amazing contributions from everyone
I am looking for advice on the original seat post and seat for the stumpjumper I am currently fixing up - is it a 30mm or 31mm diameter - any pointers to the specialised brochure for the period - Jevo

 

[Pllacebo99]

30.9 seatpost on a stumpy

Ritchey comp 1 bolt

 

[Repacker]

https://www.retrobike.co.uk/media/specialized-catalogue-2000-stumpjumper-4-webp.1698/