So went riding around this morning - tried the big DIY on the way into Fethiye and they had brushed chrome handle for 9.90 TL - but no matching knocker.
Went around sanayi - called in a few other DIY shops with no result.
Started to ride down Gunlukbasi Road from Otogar towards Calis and past a specialist door shop (just after Kipa - I think) on the right hand side and bought handle and matching knocker in gold for 10 TL + 5 TL =
15 TL (5 TL for a spy hole but I said "no thank you - I have one
)
The products are not as heavy as those that I removed but they should certainly look ok for 2 or 3 years I would think and the door now looks lovely