I suggest you do 2 things :

• run an NginX Ingress Controller in your minikube and expose it with NodePort service. Meaning it will be available somewhat similar to your service right now (high port range)
• run HAProxy on your host that runs minikube that will forward 80/443 port to your high ports on minikube (ie. 80->32080, 443->32443)

that way you can expose your ingress controller on standard ports and have your services exposed with regular kubernetes Ingress definitions on these ports.