Do you have links to stores? When I set PCPP to Philippines a lot of parts don't have a price, and the parts that do have a price are probably not very accurate. I made a list with some components that should be good. I have included everything except for the case since you already have one, just make sure to check if everything fits.
12900K is one of the best CPU's currently available.
This DDR5 RAM is the cheapest that's not too bad. I don't think you're going to notice too much of a difference between DDR4 and DDR5 in performance. But since your budget is big I guess you could spend it on future proofing.
I don't know how big of an SSD you want, but I'd say this 2tb one is a good choice.
3080 12gb and 3080 Ti aren't that different in performance while the 3080 12gb is quite a bit cheaper.
I couldn't find any prices on PSU's, but this one is good option. 850w should be enough too, but since you wanted 1000w I chose this one.