The GIGABYTE Z890 AORUS XTREME AI TOP is a great motherboard although it is a little pricey at $879.99 but you get what you pay for. THis board uses an Intel Z890 express chipset and has multiple PCIe 4.0 and 1 PCIe 5.0 M.2 and 4 6Gb/s SATA connectors.
The brain of the system, the Intel core ultra 9 285k
Not only is this a great CPU for gaming its also one of the best valued CPUs out there. The Intel core ultra 9 285k is only $579.89 on newegg:https://www.newegg.com/intel-core-ultra-9-285k-arrow-lake-lga-1851-desktop-cpu-processor/p/N82E16819118505 and it will save you even more money because unlike its predecessors it wont over heat with out liquid cooling, it does perfectly fine on air cooling though liquid cooling is still reccomended especially if your going be doing serious gaming or multiple and/or big tasks.
Intel core ultra 9 285k specs
socket:LGA1851
cores/threads:24(8 preformance 16 efficient)
max turbo boost: up to 5.7 GHz
cache: 36MB of Intel Smart cache
Memory support:dual channel DDR5 up to 64ooMT/s
PCIe support: PCIe 5.0 and 4.0
over clocking capable
integrated graphics
References:techradar https://www.techradar.com/computing/cpu/intel-core-ultra-9-285-leak-reveals-spec-of-tamed-arrow-lake-flagship-cpu-and-its-potential-performance-levels
benchmarks:passmark CPU bench mark https://www.cpubenchmark.net/cpu.php?id=6296&cpu=Intel+Core+Ultra+9+285K
In my opinion this is a great duo and adding liquid cooling would only make it better.
NOTE: THIS IS PART OF A SCHOOL PROJECT