WS 19 in a Mk2 carrier

[Petr Brezina]

Hi it seems that installation of the WS19 in my carrier is on the list and I must say that Im bit confused. Its rather clear how to install set in Mk.I carrier but not perfectly sure how to do it in Mk.II or even in Mk.III.
I found pictures from Michael R. very helpful, they are so far the most clear ones. But of course, they are for Canadian made carriers which could means that there are differencies to the british ones.
Does anyone got AVS's Ns. 101,102,104 as Roberta mentioned, please? Propably they could shine some light on it?
My Carrier has in front and in the rear bars for "quick change" of the WS set and/or chorehorse unit.
Have no idea which carrier should be used on them. No.21, No.22, No.25 (modified?) or even some other?
Thanks for help