Pepwave HD4 MBX with 5G modular need help getting 5g sims/imei

So just did the upgrade from LTE to 5G which cost like 6k for all the parts and now the fun part is getting it to work. How? The old cards I used I used Ipad IMEI numbers and that gave me unlimited internet at an affordable price. How do I do it for 5G do I use IMEI for 5G ipads and drop it in there so I don’t pay crazy buisness limited plan pricing. ?