I want to load balance 2 WAN:

1. Unifi 5Mbps with dynamic IP.
2. Maxis Business Fibre 4Mbps with 1 Fixed IP.

Can I load balance the 2 ISP and always maintain 1 fixed IP (from Maxis) to connect to outside world?

Which model can do this? Please PM me price of router and setup load balance fee.

Thanks.