You can buy it from here-
https://digitalwebstore.net/product/divi-theme-with-original-license-prime-plan-plus/.if you're from Nigeria then only stripe is available. other country pp accepted with terms and conditions.
yes in the prime package you'll get everything that you mentioned above.
= Yes use it on an unlimited amount of websites.
= Access all premade layouts of divi directly through your dashboard.
= Yes, blom, monarch, extra, Divi builder, divi theme everything is included.
= Lifetime API included in this plan
= A huge bonus for free is included in this package.
= you'll access everything through your dashboard.
if you want to own an account of Divi then see this post-
https://digitalwebstore.net/product/divi-lifetime-account-elegantthemes-52-off-2022/
only 1 in stock.
finally, I've divi supreme pro, divi monk, divi space and divi flash.
divi pixel is in the list and will be available soon, but can't say the exact date.