The tic tic sound in khyber g10 engine is normal due to its rocker design you can't make it sound less.
The sound from compressor could be due to loose belt, clutch not engaging properly, bearing problem, at last weak compressor.
Can't comment much about pressure readings.
I think you are talking about C.V joints. Can't recall their exact name but i think its sherry i am using the same one's in my car and they are going good from last 2 year's.
About wheel bearings use Nachi or NTN bearings they are good.
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