The parts in this kit match the SVEA 123 (R) stove - not the 123... so be sure to know what you have... The valve position on the 123 (R) is horizontal and is larger than the 123 - which is smaller and angles down.
http://classiccampstoves.com/threads/2-classics-123-vs-123r.12296/
This review was written in the old system and had content requirements that are different than reviews written today.