A/C, High Low pressure and normal High pressure?

Hi.

I have a the vehicle listed above base model with 4 cylinder 1.6L MPI engine.

I started noticing some issues with my A/C for a month, not cooling probably at the time I didn't do anything since I was bit tight on money. Yesterday the AC went totally warm, not cooling at all or just a slight breeze of cold air. The AC set on 18 degrees Celsius but the air coming around 27 degrees Celsius. I could hear the compressor clicking sound when turning the A/C on but not cold air. So, I went to a technician, and he hooked a machine to check the refrigerant. What he found is the low pressure at 80 PSI and the high pressure at 190 PSI.

With ambient temperature around 39 degrees Celsius, he told me you need a new compressor. Now the issue here in Saudi Arabia is that no one want to check and diagnose the issue, they want to change everything new compressor, new evaporator, new radiator etc. I did some Googling and found confusing answers, some forms say it could be the expansion valve, some say it could be the compressor, some say it's low on refrigerant. So, I am lost here. From the readings and your expert opinion what do you recommend doing?

Noting that since 2014 nothing was changed regarding the A/C. I was going to do a full refrigerant change but the technician advice to not to do it because it might damage the compressor.

Then I thought to change the expansion valve and full refrigerant change according to some forums, but I am lost here.

I would appreciate the help and thank you in advance.