Purchase combinations of Galaxy Z and Galaxy accessories and you can reach 44%/36% discount from base price for phone and accessories. Therefore, with max discount the individual prices comes down to:
Fold4: $1399.44
Flip4: $839.44
Buds2: $140.16
Buds2 Pro: $223.36
Buds Live: $159.36
Doesn't stack with multiple phones, so you can't do Flip4 x4 for 839.44 each, but you can buy multiple discounted phones providing you have the items to enable the discount.
Combinations that may be of interest:
Fold4/Flip4/x2 Buds2 for 1399.44 + 839.44 + 140.16 + 140.16 = $2519.20
Flip4/x3 Buds2 for 839.44 + 140.16*3 = $1259.92
If you can sell the buds2 for the price you've paid for (140), this leaves you with easily the cheapest Flip4/Fold4 ($1399.44/$839.44) I've seen.
Why you have to buy that many? Is it a minimum amount you have to spend to get a certain discount?