What are the majors you are applying to UC Davis and Irvine?
You are an accomplished and competitive applicant but UCLA and UCB will be Reach schools. All the UC’s are test blind so your excellent SAT score will not be considered for admission purposes. Being full pay will not be an advantage for the UC’s since they are need blind and offer little to no financial aid (need or merit) to International applicants. As long as $67K+/year is affordable, definitely apply to these schools.
Below are the overall International applicant admit rates for 2022.
International:
UCB: 5.5%
UCLA: 5.8%
UCI: 21%
UCSB: 19.7%
UCSD: 15.5%
UCD: 43%
UCSC: 55.4%
UCM: 68.3%
UCR: 81.7%
For UCB, If applying for EECS, the admit rate was 4.5% . CS in the College of Letters and Sciences was 2.9% for 2022.
UCI’s 2021 admit rate for CS was 7.1%. For 2022, it was 5.8%. For other majors, you can look up that information on the link.
https://datahub.oapir.uci.edu/Data-Hub/Undergraduate-Admissions-Dashboard.php
I have no major specific admit rate data for UC San Diego or Davis.
I would say depending upon which major you have selected to apply to UC Davis, that UCD would be a good Target school. UCI and UCSD could be anywhere from a High Match to a Reach.
Best of luck.