Thank you everyone for the feedback.
It has been most helpful.
I live on South Africa, so unfortunately the Ebay, Amazon, Fry's, etc. links won't work for me.
I can find an R-52C:
https://www.takealot.com/klipsch-reference-r-52c-centre-speaker/PLID52802977
https://www.klipsch.com/products/r-52c-center-speaker-blk-gnm
And an R-34C:
https://www.takealot.com/klipsch-reference-r-52c-centre-speaker/PLID52802977
https://www.klipsch.com/products/r-34c-center-speaker-blk-gnm
Would either of these be a good match?