I dont think that anything on 008R is the original, since the both are nearly instrumental (apart from Bill's voice that is taken from from Go To Sleep).
The unreleased original had Maxine on vocals ! Some part of this vocal later turned up on the JamsLP6 version of Last Train. If you notice, then all female vocals (apart from Wanda's) from the The White Room(JamsLP6) can be found on the Soundtrack-version, except the part where Maxine sings "Take the Last Train" (can't remember of she also sings "to Trancentral").

KSTJ is directly related to the "Pure Trance"-project, just look at the label at the B-side.

Ulrik Brandt Hansen.

 
Date: Fri, 8 Feb 2013 12:00:47 -0500
From: danthutchins@gmail.com
To: gunsofmu@yahoo.co.uk; klf@mailman.xmission.com
Subject: Re: [KLF] Pure Trance / One Hour With The KLF on bandcamp

Interesting thoughts. Since I've seen notations on some discographies that 008Rb is the "Pure Trance Original" perhaps 008Rb is indeed the original E-Train/Last Train and 008Ra is a newer, minimal mix done around the same time as "Chill Out" as the two were released in tandem. I also suspect "Kylie Said Trance" was an instrumental originally intended for one of the Pure Trance 12" discs but repurposed as 010b.