Well done on the fix and thanks for the update.

Did you end up finding the part locally?

RS components for 1k x 9 network resistors,

had to buy minimum order of 25 tho..

10 pin, have to cut last one off so it doesnt earth whole network as per the Pinrepair guide,

and the board has to have installed C49-56 which were optional on Sys 11-11A (mine had them already)

Pm me if you want a couple