The 6700xt seems pricey, check out the 77/7800 series prices.
That gamdias psu is not a true 750W (672 on 12v rail), a quality psu will be rated very near to its claim on the 12v rail spec.
Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, NM790 2TB, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T..