WELCOME TO hcm.
Your questions are very relevant.
The protein requirement a day is 1 to 2 gram per kg per day.
So you can calculate. A dietician can advise on the protein balance for you.
Diet high in PURINES like red meat can cause uric acid stones, but not proteins
intake as such.
But high protein intake associated with alcohol intake can cause stones in the PANCREAS
Hope this helps,