It is evident from your photograph that the car had a small friction disc and a large pressure plate. At the moment, we don't know (but can only assume) that is has another small friction disc (as you mention in your original post). However, if I am not mistaken, to use a large diameter pressure plate assembly, the flywheel must be drilled to accept the bolts pitch circle diameter of the large pressure plate....ie. a large pressure plate won't fit a flywheel with small pressure plate without being redrilled and resurfaced for the large pressure plate. Therefore, my logic would tell me that the larger diameter friction disc will be required....I would measure the outside diameter of the pressure plate that you removed (and is in your picture) - it will probably be around 225mm or similar.....
However, my approach would be to purchase BOTH large and small size clutch assemblies (ie. pressure plate and friction disc) with an agreement with the supplier to be able to return the version that is NOT used....when your mechanic removes the transmission to replace the clutch they will be able to determine which version to use based on what's in there already...I would always be replacing the friction disc and pressure plate as an assembly and have the flywheel removed and resurfaced...so you will not be mixing disc and pressure plates. I'm not sure how easy it is arrange this with suppliers in Egypt...hopefully you have a good range of component suppliers who can work with you or your mechanic to supply the correct parts?
All the best!
hi thanks for your time is it ok just to use a big clutch disk with the new pressure plate just like the one in the pictur i think it still have some room for the big clutch